Now that practical skills have developed enough to provide adequately for material needs, one of these sciences which are not devoted to utilitarian ends [mathematics] has been able to arise in Egypt, the priestly caste there having the leisure necessary for disinterested research.
AristotleMen pay most attention to what is their own: they care less for what is common; or, at any rate, they care for it only to the extent to which each is individually concerned.
AristotleThe happy life is thought to be one of excellence; now an excellent life requires exertion, and does not consist in amusement.
AristotleEmotions of any kind can be evoked by melody and rhythm; therefore music has the power to form character.
Aristotle.. for desire is like a wild beast, and anger perverts rulers and the very best of men. Hence law is intelligence without appetition.
AristotleHuman good turns out to be activity of soul exhibiting excellence, and if there is more than one sort of excellence, in accordance with the best and most complete.Foroneswallowdoesnot makea summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy.
Aristotle