"The habit of intellectual principles without reasons is called faith."

"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you."

"How people keep correcting us when we are young! There is always some bad habit or other they tell us we ought to get over. Yet most bad habits are tools to help us through life."

"Only sick music makes money today."

"One repays a teacher badly if one always remains nothing but a pupil."

"I would not know what the spirit of a philosopher might wish more to be than a good dancer."

"If you hear that everybody is buying a certain stock, ask who is selling."

"I have great faith in fools; self-confidence, my friends call it."

"Practice is the best of all instructors."

"Heat and animosity, contest and conflict, may sharpen the wits, although they rarely do; they never strengthen the understanding, clear the perspicacity, guide the judgment, or improve the heart."

"I myself am made entirely of flaws, stitched together with good intentions."

"Government big enough to supply everything you need is big enough to take everything you have ... The course of history shows that as a government grows, liberty decreases."