“A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.”

“We shouldn't teach great books we should teach a love of reading. ”

“I won't say that I'm an agnostic, since agnosticism maintains that one cannot know... but I'm not averse to the idea of some intelligence or some organizing force that set up the initial conditions...”

“If you're old, don't try to change yourself, change your environment.”

“I don't know whether I want to improve religion or not. I prefer to get rid of it.”

“A person who has been punished is not less inclined to behave in a given way; at best, he learns how to avoid punishment.”