"If my conduct is not upright, how can I correct the
misconduct of others?"
"Repay an injury with impartiality, and a favor with
"If you don't understand life, how can you understand
"The gentleman is careful not to commit himself in
word, but does so in deed."
"He who knows, does not speak. He who speaks, does
"Worry not that no one knows of you; seek to be worth
"Only the wisest and stupidest of men never change."
"You may ban the expression of wrong ideas, but the
ideas will still be there."
"Correlation does not imply causation."
"If two partners agree on everything, then one of
them is unnecessary."
"He who asks a question is a fool for five minutes;
he who does not ask a question remains a fool forever."
"The morality of a man is defined not in the public
arena, but in private when he believes no-one is watching."