"The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability. We say that a sentence is factually significant to any given person, if, and only if, he knows how to verify the proposition which it purports to express — that is, if he knows what observations would lead him, under certain conditions, to accept the proposition as being true, or reject it as being false."

“There is philosophy, which is about conceptual analysis — about the meaning of what we say — and there is all of this … all of life.”

“The problem of induction is, roughly speaking, the problem of finding a way to prove that certain empirical generalizations which are derived from past experience will hold good also in the future. There are only two ways of approaching this problem on the assumption that it is a genuine problem, and it is easy to see that neither of them can lead to its solution.”

“Did atheist philosopher see God when he 'died'?" by William Cash, in National Post”

“It seems that I have spent my entire time trying to make life more rational and that it was all wasted effort.”

“To say that authority, whether secular or religious, supplies no ground for morality is not to deny the obvious fact that it supplies a sanction.”

“I saw a Divine Being. I'm afraid I'm going to have to revise all my various books and opinions.”