“Enough, enough, enough! Say no more! Lump the whole thing! say that the Creator made Italy from designs by Michael Angelo!”

“To do the useful thing, to say the courageous thing, to contemplate the beautiful thing: that is enough for one man's life.”

“I don't get nearly enough credit in life for the things I manage not to say.”

“The untrapped mind is open enough to see many possibilities, humble enough to learn from anyone and anything, forbearing enough to forgive all, perceptive enough to see things as they really are, and reasonable enough to judge their true value.”

“My old man says when it's time to be counted, the important thing is to be man enough to stand up.”

“Every instrument that has been designed to be sensitive enough to detect weak light has always ended up discovering that the same thing: light is made of particles.”

“When things are at their blackest, I say to myself, 'Cheer up, things could be worse.' And sure enough, they get worse.”

“If a man says a thing often enough, he is very likely to acquire some sort of faith in it sooner or later.”

“It is easy enough to say that poverty is no crime. No; if it were men wouldn't be ashamed of it. It is a blunder, though, and is punished as such. A poor man is despised the whole world over.”

“That if you could acquire enough, accomplish enough, you’d never want to own or do another thing. That if you could eat or sleep enough, you’d never need more. That if enough people loved you, you’d stop needing love.”