Music is the movement of sound to reach the soul for the education of its virtue.

The soul should concentrate itself by itself.

The cure of many diseases is unknown to physicians because they are ignorant of the whole... For the part can never be well unless the whole is well.

For the man who makes everything that leads to happiness, or near to it, to depend upon himself, and not upon other men, on whose good or evil actions his own doings are compelled to hinge,--such a one, I say, has adopted the very best plan for living happily. This is the man of moderation; this is the man of manly character and of wisdom.

A true artist is someone who gives birth to a new reality.

Justice is having and doing what is one's own.

Thus rhetoric, it seems, is a producer of persuasion for belief, not for instruction in the matter of right and wrong ... And so the rhetorician's business is not to instruct a law court or a public meeting in matters of right and wrong, but only to make them believe.