"What would you rather have, a pig that grunts contentedly or a philosopher who complains?"

"It is not what happens to you, but how you react to it that matters."

"If evil be spoken of you and it be true, correct yourself; if it be a lie, laugh at it."

"The philosopher's school, ye men, is a surgery: you ought not to go out of it with pleasure, but with pain. For you are not in sound health when you enter."

"What need is there to weep over parts of life? The whole of it calls for tears."