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.
We have two ears and one tongue so that we would listen more and talk less.
Of what use is a philosopher who doesn't hurt anybody's feelings?
What I like to drink most is wine that belongs to others.
On being asked by someone how he could become famous, Diogenes responded: 'By worrying as little as possible about fame
There is only a finger's difference between a wise man and a fool.