“Doubt is not a pleasant condition, but certainty is an absurd one.”

“What is tolerance? It is the consequence of humanity. We are all formed of frailty and error; let us pardon reciprocally each other's folly — that is the first law of nature.”

“Men will always be mad, and those who think they can cure them are the maddest of all.”

“Let us cultivate our garden.”

“It is the privilege of true genius, and certainly of the genius that opens a new road, to make without punishment great mistakes.”

“It is better to risk sparing a guilty person than to condemn an innocent one.”

“Our new Constitution is now established, and has an appearance that promises permanency; but in this world nothing can be said to be certain, except death and taxes.”

“When in doubt, tell the truth.”

“The old believe everything; the middle-aged suspect everything; the young know everything.”

“Men marry because they are tired; women because they are curious. Both are disappointed.”

“Oh, Diamond! Diamond! thou little knowest what mischief thou hast done!”

“I have no idea. People who boast about their IQ are losers.”