"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."

"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."

"O, my offence is rank, it smells to heaven;It hath the primal eldest curse upon 't, A brother's murder."

"There's always someone cooler than you."

"From the errors of others a wise man corrects his own."

"After all, life is really simple; we ourselves create the circumstances that complicate it."

"Religion has no business to formulate social laws and insist on the difference between beings, because its aim and end is to obliterate all such fictions and monstrosities."

"I do not say a proverb is amiss when aptly and reasonably applied, but to be forever discharging them, right or wrong, hit or miss, renders conversation insipid and vulgar."