The unexamined life is not worth living.

Is it true; is it kind, or is it necessary?

The only true wisdom is in knowing you know nothing.

...[W]hy should we pay so much attention to what 'most people' think? The really reasonable people, who have more claim to be considered, will believe that the facts are exactly as they are.

For the poet is a light and winged and holy thing, and there is no invention in him until he has been inspired and is out of his senses, and the mind is no longer in him: when he has not attained to this state, he is powerless and is unable to utter his oracles.

If all our misfortunes were laid in one common heap, whence everyone must take an equal portion, most people would be content to take their own and depart.