"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 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 only certainty is that nothing is certain."

"The Price Of Freedom Is Eternal Vigilance."

"Though it be honest, it is never good to bring bad news: give to a gracious message an host of tongues; but let ill tidings tell themselves when they be felt."

"America: the only country in the world where failing to promote yourself is regarded as being arrogant."

"It is easier to fight for one's principles than to live up to them."

"My heart is pure as the driven slush."

"If one is to be an effective leader, one must willingly accept difference."