“I think one of the things you and I have to learn is that we have to live without the consolation of belonging to a Church….Of one thing I am certain. The religion of the future will have to be extremely ascetic, and by that I don’t mean just going without food and drink.”

“Concerning that which cannot be talked about, we should not say anything. ”

“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.”

“Knowledge is in the end based on acknowledgement.”

“Either my piece is a work of the highest rank, or it is not a work of the highest rank. In the latter (and more probable) case I myself am in favour of it not being printed. And in the former case it’s a matter of indifference whether it’s printed twenty or a hundred years sooner or later. After all, who asks whether the Critique of Pure Reason, for example, was written in 17x or y.”

“A good objection helps one forward, a shallow objection, even if it is valid, is wearisome. … The objection does not seize the matter by its root, where the life is, but so far outside that nothing can be rectified even if it is wrong. A good objection helps directly towards a solution, a shallow one must first be overcome and can, from then on, be left to one side. Just as a tree bends at a knot in the trunk in order to grow on.”

“If someone tells me he has bought the outfit of a tightrope walker I am not impressed until I see what is done with it.”

“What is the use of studying philosophy if all that it does for you is to enable you to talk with some plausibility about some abstruse questions of logic, etc., & if it does not improve your thinking about the important questions of everyday life, if it does not make you more conscientious than any … journalist in the use of the DANGEROUS phrases such people use for their own ends.”

“But some of the greatest achievements in philosophy could only be compared with taking up some books which seemed to belong together, and putting them on different shelves; nothing more being final about their positions than that they no longer lie side by side. The onlooker who doesn’t know the difficulty of the task might well think in such a case that nothing at all had been achieved.”

“In philosophy it is always good to put a question instead of an answer to a question. For an answer to the philosophical question may easily be unfair; disposing of it by means of another question is not.”

“The sole remaining task for philosophy is the analysis of language.”

“There is a truth in Schopenhauer’s view that philosophy is an organism, and that a book on philosophy, with a beginning and end, is a sort of contradiction. … In philosophy matters are not simple enough for us to say ‘Let’s get a rough idea’, for we do not know the country except by knowing the connections between the roads.”

“An honest religious thinker is like a tightrope walker. He almost looks as though he were walking on nothing but air. His support is the slenderest imaginable. And yet it really is possible to walk on it.”

“Don’t think, but look! (PI 66)”

“Not how the world is, but that it is, is the mystery.”