My favorites:

"In a rich man's house there is no place to spit but his face."

"As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task."

"Of what use is a philosopher who doesn't hurt anybody's feelings?"

"The great thieves lead away the little thief."

This guy would have been king of ancient Twitter, banned and reported everyday.