“Who is the wrong person to criticise?You”

“Learn to be as analytical about things of which you are credulous as you are of those which you criticise.”

“What can you do with a person who says that he is absolutely uncertain about everything, and that he is absolutely certain about that?”

“You need not wonder whether you should have an unreliable person as a friend. An unreliable person is nobody's friend.”

“An egocentric pessimist is a person who thinks he hasn't changed, but that other people are behaving worse than before.”

“Right time, right place, right people equals success.Wrong time, wrong place, wrong people equals most of the real human history.”

“A certain person may have, as you say, a wonderful presence; I do not know. What I do know is that he has a perfectly delightful absence.”