Do it because it's in your heart. Not because you want something in return. Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for.

To know thyself is the beginning of wisdom.

Are you not ashamed of heaping up the greatest amount of money and honor and reputation, and caring so little about wisdom and truth and the greatest improvement of the soul?

Beauty is a short-lived tyranny.

It is better to be at odds with the whole world than, being one, to be at odds with myself.

Why should we pay so much attention to what the majority thinks?

I alone know I am wise because I alone know I know nothing.