Ventricular Septal Defect (VSD) Research Paper Example | Topics and Well Written Essays - 1000 words

Ventricular Septal Defect (VSD) - Research Paper Example Most common form of congenital heart diseases is defects in septation, atrial septal defects, ventricular septal defects, stenotic valvular lesions or coronary artery abnormalities (Schoen and Mitchell, 2009). Ventricular septal defects are the most common congenital defects occurring in the human heart.   Ã‚  Defect at the level of ventricle i.e. inter ventricular septum is called ventricular septal defect (VSD). It occurs in 1 of every 500 live births. The main pathology in a septal defect is that left ventricular pressure is higher than the right ventricular pressure resulting in blood flowing from left to right and pulmonary blood flow increases. Clinically ventricular septal defects can be divided into small, medium and large. A small VSD is asymptomatic, a medium VSD presents with fatigue, cardiac enlargement and audible apex beat, whereas, a large VSD presents with pulmonary hypertension (Kumar and Clark, 2009). Hemodynamics  is an important part of the cardiovascular system as it deals with the  forces  that pump the heart. Hemodynamics in an individual with congenital malformation is affected due to the defect. The factors affecting the hemodynamics of a ventricular septal defect are the size of the ventricular defect, pressure changes in right and left ventricular chambers and the pulmonary resistance. A ventricular septal defect may not be evident at the birth of a child because the pressure in the right and left ventricles is equal and there is no shunting. As the pressure between the two ventricles starts to change, shunting also correspond and the ventricular defect becomes clinically evident. These changes do not apply to a patient of Down syndrome in which pulmonary resistance changes do not lead to signs of VSD. In VSD the shunt volume is linked to the size of the defect in the ventricle and the pulmonary vascular resistance. If the ventricular defect is not accompanied by

Communication Technologies Essay Example | Topics and Well Written Essays - 3500 words

Communication Technologies - Essay Example Then the ethical side of the matter is discussed. Two theories are drawn (Utilitarian and Kantian) to find out is it moral to monitor company's personnel. The third part of the paper is devoted to social responsibility. It is argued that a widespread use of monitoring techniques that intrude into employees' private life indicates the low level of social responsibility among employers, which in fact damages their own business. The section also brings recommendations on how to improve privacy preservation within the company and explains what benefits a company will receive. As the communication technologies continue to develop, the topic of workplace privacy becomes increasingly important. A hundred years ago manager was able to monitor his subordinates only through visual observation and mail check, if a business was related to frequent use of post services. Later, with the spread of telegraphic communication the tension of employers rose up, although it was still very hard for employees to misuse business channels for private purposes. Thus, there was little need in monitoring the use of business communication by personnel. Everything has changed with the development of phone, and later, e-mail. With the ease of access to better methods of communication, employers often use the chance to monitor their employees' activity, justifying their actions as concern for productivity. From the employees' side the monitoring of their phone calls and e-mail messages on the workplace is often perceived as the intrusion into privacy. Consequently, complaints of em ployees drive them to court bringing suits against their employees. So far most of such cases were resolved in favor of employers, as can be seen from examples illustrated later in the paper. The legal side of the matter of workplace privacy is observed in the next section. Law is on the Employer's Side Most of the developed Western countries have a twofold legislation on the monitoring of employees' workplace activity by employers. For example, in the US interception of wire and electronic communications is prohibited (Electronic Communication Privacy Act, 18, USC 2511, 1986). However the same law has some exceptions, allowing employers to monitor business phones and emails of their employees in most of the cases: It shall not be unlawful under this chapter for a person acting under color of law to intercept a wire, oral, or electronic communication, where such person is a party to the communication or one of the parties to the communication has given prior consent to such interception. (Electronic Communication Privacy Act, 18, USC 2511, 1986) Prior consent may be given each time an employee uses communication devices, or implied. Nevertheless, "the fact that an employee merely knows that the employer has the capability to monitor telephone conversations is not sufficient to establish implied consent" (Nuterangelo, 2004). An employee must be aware of monitoring. Therefore, every employee that uses communication services belonging to employer is in the same 'party' with his employer, allowing him to intercept every message or call. Moreover, each employee that was informed in some way (e.g. contract agreement) of using work phones or computers for

Music Essays Concept of Music

Music Essays Concept of Music Concept of music Journal Entry for Reading The given article clearly describes the concept of music and has helped me in understanding the music. According to my perception regarding the article, Music is a kind of art and environment. It is an art of transcription of sounds in time for creating a continuous, integrated and resonant composition with the assistance of melody, harmony, rhythm and timbre. It is a combination of pleasing and harmonious sounds. It helped me in understanding the basic constituents of a musical composition. I have become able to understand that it is an eminent part of all the living beings. Music has its presence everywhere, in every creature and in different forms. It provides relaxation to the mind. When I feel very tired and I use to hear music. It provides relaxation and energy to my body. Firstly, I was introduced to music at my school. I learned singing as well as playing harmonium at that time. After that, I learned music at a summer camp. My music teacher was surprised with my understanding of music and the abilities of learning music at a faster pace in comparison to my fellows. I really love music and want to become a singer in near future. For the achievement of my goal, I am working hard towards learning the skills. Journal Entry for Music Controversies The genre of music can be classified into two categories, i.e. good or bad. With the assistance of this, the content of the genre of music can be evaluated. Different kinds of music are present world wide in different cultures. Music differs from one culture to another. The different genres of music act as the web around the culture of the respective country. The music videos forecasted on different television channels are not according to the ethical standards of the society. The videos show vulgarity, which puts negative impact on the society. The growing multinational companies in music industry, and the utilization of independent record labels for the survival in the market by these companies has negatively impacted the young listeners. The young listeners are tending towards excessive use of drugs and violence after watching such controversial music records of rap, rock n roll, etc (Dalton, 2008). In the past few years, there is an increase in the listening of rap music by youths in America, which has led to an increase in crimes such as robberies, murders, rapes, etc. The rap music has led to social and political controversies. The critics have suggested proposing laws against such controversial cases and government has implemented security review for warning labels on records. Tupac was a critic of the system. He revealed the critical situations related to the system in his poetry. His work was mainly focusing on the lifestyles of ghetto and social militant engaged in activism. His lyrics were about the problems existing in the society and the conflicts due to racism. The listening of music is fine, but the images displayed on the television and copying them by the youths and children are the controversial aspects of music. Journal Entry for Movies Music plays a significant role in movies. Whether it is a play, drama, or a movie, all of them are incomplete without musical compositions. We can consider the example of the movie ‘Amadeus’ in which a child has a possession to become a famous composer. The life cycle to become a great composer and the twist in life of the hero are shown with very effective combination of musical tracks. The movie shows the courage of the director towards the life of Mozart and becomes successful in producing curiosity in the viewers towards music (Amadeus, 2008). In the movie ‘Dearly Beloved’, spiritual music has been composed by the composer and the movie shows a romantic mixture with musical lyrics. Music is present everywhere from the ancient time and it is integrated to nature. The movie ‘Phantom of the Opera’ is composed with classic silent version of the music, which shows a visual percept for the movie. The movie also presents a musical mystery. The basic requirement of any movie is an effective combination of sound effects with musical compositions. Music composed in the movies is the auditory art form, which can make the movie successful. The creativity of musicians and composers makes the music records successful in the industry. Journal Entry for Music in Puerto Rico African and European formation of music has a great influence on the music of Puerto Rico. It is famous world wide and mostly in the Caribbean region. The music of Puerto Rico has different genres, such as native genres: decimal and seis, and folk music genres: salsa, rock, danza, bomba, plena, etc. Each genre produces different and unique pitch and tone. The musical composers utilize different genres for composing music of movies related to love tragedies, and different stories conveying moral lessons. There are various radio stations in Puerto Rico. Among them, only one radio station carries classical music. The rap and hip hop music genres negatively influence the society. The criminal activities and actions increase in the society. The people will deviate from the cultural values and loose their old traditional roots (Welcome to Puerto Rico, 2008). The music industry of Puerto Rico must have to concentrate on its native and folk music genres instead of external music genres from different countries. The youth should be motivated towards learning classical music and promoting the original music genres of Puerto Rico world wide. The culture of Puerto Rico is mainly shaped by the music. The music of Puerto Rico has evolved out of the combination of other cultures with a distinctive tone of music. Thus, the Puerto Rican music should focus on its traditional music to bind the people and the cultural values in the society, as contemporary music has provided many popular stars like Ricky Martin, Olga Tanon, etc. with name and fame in the world of music. References Amadeus (2008). Retrieved August 23, 2008, from http://www.imdb.com/title/tt0086879/ Dalton, C. (2008). Controversy between Rap Music Society. Retrieved August 23, 2008, from http://www.writing.com/main/view_item/item_id/1320365 Welcome to Puerto Rico (2008). Retrieved August 23, 2008, from http://welcome.topuertorico.org/culture/music.shtml

Fall of Constantinople :: World History

Fall of Constantinople By 350 A.D., Constantinople was one of the world's greatest capitals. The city was located between Asia and Europe, making it a very diverse and strategic place. The many bodies of water surrounding the peninsula gave Constantinople many trade routes as well as protection. The famous walls were also built to further strengthen security. Constantinople eventually rose to a beautiful city of strength and wealth. Its Greek heritage separated itself from the West with their religion of Eastern Orthodoxy. Despite the power of Constantinople, unending attacks and problems would eventually weaken the city. The first major catastrophe took place in 542, when a plague struck and killed massive amounts of people. The recovery was very slow, and it allowed for countless attacks. For Constantinople, however, it was just the beginning. Justinian ruled the Byzantine Empire during its height. His military faced strength from the East that greatly endangered his people. The Sassanian Empire of Persia was one threat that Byzantines needed to conquer. The Persians endangered eastern lands, so Justinian's military prevented any conquest. The Sassanians were defeated and security was briefly gained. After his success, Justinian wanted to regain lands the Roman Empire once lost to invaders. Byzantine armies began a reconquest of Spain, Italy, and North Africa. Battles against various Germanic groups took place, and western lands were conquered by the Byzantines. The wars were expensive, and resources were low. Defense became weak and territories were lost increasingly after Justinian's death. During the early 700s, the Byzantine Empire was in turmoil and chaos. As Leo III took power, Constantinople was being attacked by Avars, Bulgarians, and Arabs. The Arabs from the Middle East were a main concern for Leo III because of their large conquests in the Asia Minor. The Arabs advanced to spread their faith of Islam and control resources. The Arabs slowly acquired land until their siege on Constantinople itself. Leo III made brilliant defense moves to stop the invaders. His military forces attacked the Arabs from the rear successfully while naval forces were repelled with Greek Fire. Greek Fire was the empire's secret weapon that may have saved them from the Arab siege. Arab ships would burst into flames from contact with the "liquid fire." Fighting continued for a year until the Arabs retreated. Constantinople was defended successfully, but the empire suffered heavy losses and continued to loose land. The era from about 1025 to 1453 witnessed the Byzantine Empire in its ultimate destruction.

Differentiating Work And Keeping Learners Motivated

The Entry to Employment ( E2E ) programme is a roll-on/roll-off class designed to supply a tract for 16-18 twelvemonth olds who are non in instruction, employment or preparation ( NEETs ) towards employment or farther instruction. As many of these scholars have non been in any kind of instruction for some clip due to exclusion or other barriers to their acquisition, they may get with a deficiency of apprehension of their ain abilities, current degree of cognition and, frequently, larning troubles that may or may non hold been identified antecedently. Using instance surveies of pupils that have been anonymised, this paper will analyze ways in which work can be differentiated for pupils, peculiarly those with larning troubles, in a group that has a broad scope of abilities. It will besides look at ways to actuate scholars affected by their ain realization that they may non be at the same degree of their equals to work towards makings at their ain criterion. Main Body Over the last 2 old ages I have been learning pupils in the Foundation Department of East Riding College where I have taught scholars with mild larning troubles and other barriers to larning. In this clip the section has besides taken on the proviso of an E2E class which has been developed to offer NEETs a path into farther instruction, apprenticeships or employment. The purpose of the class is to develop the scholars ‘ basic literacy, numeracy and ICT accomplishments and besides supply other topics that will heighten their employment and societal accomplishments to a degree that would be acceptable to an employer. Although E2E Entitlement Curriculum states that: Some immature people may come in E2E with larning troubles and disablements or may come into E2E at below entry degree. The function of E2E for these scholars, and their advancement and accomplishment through the programme will necessitate to be carefully negotiated. Every consideration should be taken to guarantee that immature people are non placed permissively on E2E because their behavior or demands may forbid them being placed elsewhere ( LSC, 2006, p.6 ) . It has been my experience that some scholars that are referred to E2E arrive with larning troubles that are non statemented or have ne'er been identified because the scholar has non been in any kind of instruction for some clip due to exclusion from school or other barriers to instruction. As Petty, observes: â€Å" Each scholar is alone and has single demands. If the demands of our scholars are discovered and met, the opportunities of success are greatly increased † ( Petty, 2009, p.530 ) . So it is indispensable that initial and diagnostic appraisals are carried out for each of the scholars every bit shortly as possible to place any acquisition troubles and enable schemes to be put into topographic point to supply support for the pupil. Motivation, as with all instruction, is an of import factor that affects scholars on the E2E class. Scales points out that â€Å" Everyone is motivated to larn ; it ‘s portion of what it means to be human. † ( Scales, 2008, P. 237. ) , but besides clarifies that â€Å" Learning is natural ; instruction, unluckily is n't. † ( Scales, 2008, p.238 ) . In the instance of many E2E pupils, although â€Å" street wise † due to life experiences, farther formal instruction would non hold been envisaged in their ain hereafter. They have small or no intrinsic motive to take up analyzing and comply with class demands. Whereas intrinsic motive in instruction can be seen as a desire for the pupil to larn for their ain demands and involvements, extrinsic motive is frequently a major portion of larning utilizing the proviso of wagess, competition or countenances ( Harkin et al. 2001, p.67 ) . Although extrinsic motive can be utile when set abouting boring undertakings, it is evidently more desirable for a pupil to develop an intrinsic motive to larn. Self-efficacy, as described by Bandura, in his societal cognitive theory is â€Å" the belief in one ‘s capablenesss to form and put to death the classs of action required to pull off prospective state of affairss † ( Bandura, 1995, p. 2 ) . He besides states that a individual with strong self-efficacy will develop strong intrinsic motives towards undertakings and involvements ( Bandura, 1994 ) . Initially many of the pupils are placed on the class by Connexions. As it is non ever their ain pick to re-join instruction, their lone motive to fall in the class appears to be extrinsic, for illustration in the signifier of Education Maintenance Allowance or as portion of a tribunal order. Much has to be done to actuate these scholars and many extrinsic incentives need to be applied such as congratulations and encouragement or physical wagess ( e.g. cocoa ) . A peculiar characteristic that I have observed is that although the college is in an mean sized town with several secondary schools, most of the scholars know each other due to being placed in assorted Work Related Learning or Pupil Referral groups. This can take to a peculiar type of de-motivation as new scholars join the group. This is where a scholar does non understand their ain current degree of cognition and apprehension of a topic due to the fact that they have been out of instruction for some clip and they see that their equals may be set abouting work of a higher degree than them. The scenario tends to be: because their friend is making a certain degree of work, they excessively want to make work at this degree. They so find that they are non able to make the work because of their current capablenesss and so become de-motivated because they believe themselves inferior. With respect to Reece and Walker ‘s version of Maslow ‘s hierarchy of basic human needs as appl ied to the schoolroom, ( Reece & A ; Walker, 2007 ) , self-esteem is lowered and so motive is affected. O'Brien and Guiney province that: ‘Differentiation is non about trouble-shooting. It is a construct that has to be seen in an inclusive manner, using to everyone ‘ ( O'Brien & A ; Guiney, 2001, p. nine ) . Of class, attending should ever be paid to the distinction of work for pupils in all categories, but for the ground mentioned above it is peculiarly of import that work is differentiated for these scholars so that their self-pride is non affected. Case 1- Student J. J. joined a new group with seven other scholars. He had travelled around the state with his household and so did non cognize any of the other scholars. On his application to fall in the class he stated that he had no acquisition troubles. His initial appraisal consequences showed that he was Entry 1 for literacy and numeracy where the other scholars were Entry 3 to Level 1. J. was upset when in the first category he was given a diagnostic numeracy trial at Entry 2 when other scholars were finishing nosologies at a higher degree. In treatment with J. it appeared that he may hold had dyslexia as he described some of the authoritative marks such as seeing drifting words and composing words backwards. He explained that he had ever thought of himself as stupe and blamed himself for his hapless literacy and numeracy accomplishments. Following a showing within the college, it was confirmed that J. did hold dyslexia and schemes were put into topographic point to back up his hereafter larning such as the allotment of a Learning Support Advisor to work with him when required. This was the initial measure in so happening ways that work could be differentiated in ways that suited J. When developing worksheets for a category, it became of import that if separate worksheets were appropriate for different degree pupils, all sets would take to the same replies or decisions. For illustration, higher degree scholars may be asked to compose an reply in a few sentences, whereas J. may be given multiple pick replies or a cloze exercising. The of import thing being that when, as a group, we could travel through work and J. would experience confident giving replies along with his equals. Mentoring was besides good to J. He would frequently understand things better if he was helped by one of his equals. Because of this, J. would work good in little groups with peculiar scholars doing certain that the groups were chosen carefully. There has been a definite alteration in J ‘s self-efficacy. Gross states that â€Å" this is brought approximately best through existent experience in confronting antecedently feared or avoided state of affairss † ( Gross, 2009, p.832 ) . J. appears to be developing an intrinsic motive to larn and is now meaning to travel on to a foundation degree class. Case 2- Student B. B. has many barriers to larning including behavioral jobs and a deficiency of appropriate societal accomplishments. B. knew many of the scholars in the group that she was fall ining and instantly wanted to make the work that they were making despite the fact that her initial appraisal had shown her to be at a lower degree of ability than her friends were presently at. It was explained to B. that she needed to work at her literacy accomplishments to achieve the degree that they were at ; after all, they had been on the class for some hebdomads already. B. did non understand this and refused to make any work that was below the degree of her equals. When given the work above her current degree, she became riotous in category due to the fact that she was unable to make the work. B. had old bad educational experiences which had, in portion, led to her exclusion from school. She had non been in instruction since the age of 11 and so her basic accomplishments were hapless. B. did non hold any farther acquisition troubles other than her societal and emotional barriers to acquisition and so schemes to actuate her rich person had to be developed. As with J. distinction has to be applied to results every bit good as the work that is devised for B. When work was set for B, it shortly became evident that she responded good to praise when she had completed undertakings good. Often she would hotfoot to hold her work marked before go oning with other undertakings. B. besides responded good to kinaesthetic acquisition manners and she enjoyed games such as lotto and card games. It became obvious that she was profoundly satisfied by the feedback she received and that this provided her motive. Behavioural theory provinces that when a stimulation is applied a right response should be rewarded and wrong responses should be discouraged. Thorndike ‘s â€Å" Law of Effect † , would look to use here where the satisfaction that a reward brings increases the desire to make the same once more in future ( Child, 2007, p.164 ) . Decision Although it may be already hard and clip devouring to develop lessons for these groups any jobs are exacerbated by the fact that the scholars may get and go forth at any clip during the roll-on/roll-off programme. This means that it is indispensable that diagnostic appraisals are completed instantly to determine accomplishment degrees, larning manners and any learning troubles or disablements. O'Brien and Guiney point out that â€Å" Sometimes teaching troubles are manipulated and become identified as larning troubles † ( O'Brien and Guiney, 2001, p.20 ) . This should non be allowed to go on. The development of intrinsic motive within scholars is a mark for all instructors but it can non ever be achieved when pupils are non receptive to larning. Extrinsic motive is frequently a major portion of the rhythm and should be used consequently. It can be seen that there is a definite demand for distinction in a group that has many scholars at differing degrees and abilities. It is highly hard to seek to learn such a group and keep motive if the undertakings are non adapted for single scholars and their educational demands.

Uses of Radiation in Medical Industry

Uses of Radiation in the Medical Industry Although scientists have only known about radiation since the 1890s, they have developed a wide variety of uses for this natural force. Today, to benefit humankind, radiation is used in medicine, academics, and industry, as well as for generating electricity. In addition, radiation has uses in such areas as agriculture, space exploration, law enforcement, geology and many others. However, in the medical industry, radiation is used for x-rays, therapeutic uses, and in nuclear medicine procedures.The most common of these medical procedures involve the use of x-rays — a type of radiation that can pass through our skin. When x-rayed, our bones and other structures cast shadows because they are denser than our skin, and those shadows can be detected on photographic film. The effect is similar to placing a pencil behind a piece of paper and holding the pencil and paper in front of a light. The shadow of the pencil is revealed because most li ght has enough energy to pass through the paper, but the denser pencil stops all the light.The difference is that x-rays are invisible, so we need photographic film to â€Å"see† them for us. This allows doctors and dentists to spot broken bones and dental problems. X-rays and other forms of radiation also have a variety of therapeutic uses. When used in this way, they are most often intended to kill cancerous tissue, reduce the size of a tumor, or reduce pain For example, radioactive iodine is frequently used to treat thyroid cancer, a disease that strikes about 11,000 Americans every year.While it's killing the cancer, radiation therapy also can damage normal cells. The good news is that normal cells are more likely to recover from the effects of radiation. Doctors take precautions to protect a person's healthy cells when they're giving radiation treatments. Although most therapeutic uses of radiation involve the treatment of cancer, therapeutic doses may also be used to tr eat conditions such as clogged blood vessels. In addition, hospitals and radiology centers perform approximately 10 million nuclear medicine procedures in the United States each year.Nuclear medicine procedures record radiation emitting from the patient's body rather than emit radiation that is directed through the patient's body. In such procedures, doctors administer slightly radioactive substances, called radiopharmaceuticals, to patients, which are attracted to certain internal organs such as the pancreas, kidney, thyroid, liver, or brain, to diagnose clinical conditions. Nuclear medicine is primarily used for diagnosis of diseases, but it can be used to treat disease as well.Therapeutic uses include treatment of hyperthyroidism and pain relief from certain types of bone cancers. There are many uses of radiation in medicine. X-rays, therapeutic uses, and nuclear medicine are just some ways radiation is used in the medical industry. The most well known is from of radiation is usi ng x rays to see whether bones are broken. However, radiation therapy is also well-known for the treatment of disease or cancer. Lastly, radiation in nuclear medicine is used to identify abnormalities very early in the progress of a disease.

Plato Essays (602 words) - Platonism, Theory Of Forms, Free Essays

Plato Essays (602 words) - Platonism, Theory Of Forms, Free Essays Plato Plato's theory of knowledge is found in the Republic, particularly in his discussion of the image about the myth of the cave. Plato distinguishes between two levels of awareness: opinion and knowledge. The myth of the cave describes individuals chained deep within the recesses of a cave. Bound so that vision is restricted, they cannot see one another. The only thing visible is the wall of the cave upon which appear shadows cast by models or statues of animals and objects that are passed before a brightly burning fire. Breaking free, one of the individuals escapes from the cave into the light of day. With the aid of the sun, that person sees for the first time the real world and returns to the cave with the message that the only things they have seen are shadows and appearances and that the real world awaits them if they are willing to struggle free of their bonds. The shadowy environment of the cave symbolizes for Plato the physical world of appearances. Escape into the sun-filled setting outside the cave symbolizes the transition to the real world, the world of full and perfect being, the world of Forms, which is the proper object of knowledge. Plato established the Forms as arranged hierarchically; the supreme Form is the Form of the Good, which, like the sun in the myth of the cave. There is a sense in which the Form of the Good represents Plato's movement in the direction of an ultimate principle of explanation. Ultimately, the theory of Forms is intended to explain how one comes to know and also how things have come to be as they are. In philosophical language, Plato's theory of Forms is a theory of knowledge and a theory of being. The cave is the world The fetters are the imagination The shadows of ourselves are the passive states which we know by thinking. The learned in the cave are those who possess empirical forms of knowledge (who know how to make predictions, the doctors who know how to cure people by using empirical methods, those who know what is going on, etc.). Their knowledge is nothing but a shadow. Education, he says, is, according to the generally accepted view of it, nothing but the forcing of thoughts into the minds of children. For, says Plato, each person has within himself the ability to think. If one does not understand, this is because one is held by the chains. Whenever the soul is bound by the chains of suffering, pleasure, etc. it is unable to contemplate through its own intelligence the unchanging patterns of things. No doubt, there are mathematicians in the cave, but their attention is given to honors, rivalries, competition, etc. If anyone is not able to understand the unchanging patterns of things, that is not due to a lack of intelligence; it is due to a lack of moral stamina. In order to direct one's attention to the perfect patterns of things, one has to stop valuing things which are always changing and not eternal. One can look at the same world, which is before our eyes, either from the point of view of its relation to time, or from that of its relationship to eternity. Education means turning the soul in the direction in which it should look, of delivering the soul from the passions. Plato's morality is: Do not make the worst possible mistake of deceiving yourself. We know that we are acting correctly when the power of thinking is not hindered by what we are doing. To do only those things which one can think clearly, and not to do those things which force the mind to have unclear thoughts about what one is doing. That is the whole of Plato's morality.