Socrates

By all means marry; if you get a good wife, you'll be happy. If you get a bad one, you'll become a philosopher.

Death may be the greatest of all human blessings.

Get not your friends by bare compliments, but by giving them sensible tokens of your love.

If a man is proud of his wealth, he should not be praised until it is known how he employs it.

Remember what is unbecoming to do is also unbecoming to speak of.

The only good is knowledge and the only evil is ignorance.

Think not those faithful who praise all thy words and actions; but those who kindly reprove thy faults.

I am not an Athenian or a Greek, but a citizen of the world.

I decided that it was not wisdom that enabled [poets] to write their poetry, but a kind of instinct or inspiration, such as you find in seers and prophets who deliver all their sublime messages without knowing in the least what they mean.

The unexamined life is not worth living.