We suffer more in imagination than in reality.
There are a few men whom slavery holds fast, but there are many more who hold fast to slavery.
A favor is to a grateful man delightful always; to an ungrateful man only once.
Anyone can stop a man's life, but no one his death; a thousand doors open on to it.
See what daily exercise does for one.
The place one's in, though, doesn't make any contribution to peace of mind: it's the spirit that makes everything agreeable to oneself.