"Remember that if you are doing something for your own good, you must not be ashamed of it, even if the mob is going to misinterpret it."

"If a man is unhappy, this must be due to his own fault, that he does not understand that it is in his power to be happy."

"It is not poverty that makes a man miserable, but covetousness."

"You may fetter my leg, but Zeus himself cannot get the better of my free will."

"If you have assumed a character beyond your strength, you have both played a poor figure in that, and neglected one that is within your powers."