"This only is certain, that there is nothing certain; and nothing more miserable and yet more arrogant than man."

"No mortal man, moreover is wise at all moments."

"In these matters the only certainty is that nothing is certain."

"In comparing various authors with one another, I have discovered that some of the gravest and latest writers have transcribed, word for word, from former works, without making acknowledgment."

"Why is it that we entertain the belief that for every purpose odd numbers are the most effectual?"

"The best plan is to profit by the folly of others."

"The genius of you Americans is that you never make clear-cut stupid moves, only complicated stupid moves which make us wonder at the possibility that there may be something to them we are missing."

"Confusion is always the most honest response."

"The invariable mark of wisdom is to see the miraculous in the ordinary."

"Vladimir: That passed the time.Estragon: It would have passed in any case.Vladimir: Yes, but not so rapidly."

"Make service your first priority, not success and success will follow."

"Let us be resolute in prosecuting our ends, and mild in our methods of so doing."