For it is owing to their wonder that men both now begin and at first began to philosophize... They were pursuing science in order to know, and not for any utilitarian end.

Courage is the first virtue that makes all other virtues possible.

He overcomes a stout enemy who overcomes his own anger.

Emotions of any kind can be evoked by melody and rhythm; therefore music has the power to form character.

It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.

It is best to rise from life as from a banquet, neither thirsty nor drunken.

Happiness itself is sufficient excuse. Beautiful things are right and true; so beautiful actions are those pleasing to the gods. Wise men have an inward sense of what is beautiful, and the highest wisdom is to trust this intuition and be guided by it. The answer to the last appeal of what is right lies within a man's own breast. Trust thyself.