"To be rich is not to have much, but to desire little."

"Life is like a play: it matters not how long it is, but how good it is."

"There is no more unfortunate creature under the sun than a man who has everything."

"The best ideas are common property."

"The greatest blessings of mankind are within us and within our reach. A wise man is content with his lot, whatever it may be, without wishing for what he has not."