When asked what learning was the most necessary, he said, “Not to unlearn what you have learned!”

Anaximander used to assert that the primary cause of all things was the Infinite,-not defining exactly whether he meant air or water or anything else.

Bias used to say that men ought to calculate life both as if they were fated to live a long and a short time, and that they ought to love one another as if at a future time they would come to hate one another; for that most men were bad.

Socrates said, "Those who want fewest things are nearest to the gods.

Antisthenes used to say that envious people were devoured by their own disposition, just as iron is by rust.

Bury me on my face," said Diogenes; and when he was asked why, he replied, "Because in a little while everything will be turned upside down.

Pittacus said that half was more than the whole.