“Hell isn't other people. Hell is yourself.”

“I should not like my writing to spare other people the trouble of thinking. But, if possible, to stimulate someone to thoughts of his own.”

“The real question of life after death isn't whether or not it exists, but even if it does what problem this really solves.”

“You can't think decently if you're not willing to hurt yourself”

“If you and I are to live religious lives, it mustn't be that we talk a lot about religion, but that our manner of life is different. It is my belief that only if you try to be helpful to other people will you in the end find your way to God.”

“Philosophy hasn't made any progress? - If somebody scratches the spot where he has an itch, do we have to see some progress? Isn't genuine scratching otherwise, or genuine itching itching? And can't this reaction to an irritation continue in the same way for a long time before a cure for the itching is discovered?”

“This is how philosophers should salute each other: ‘Take your time.”