“There are things known and there are things unknown, and in between are the doors of perception.”

“These are the sort of things people ought to look at. Things without pretensions, satisfied to be merely themselves.”

“The man who comes back through the Door in the Wall will never be quite the same as the man who went out. He will be wiser but less sure, happier but less self-satisfied, humbler in acknowledging his ignorance yet better equipped to understand the relationship of words to things, of systematic reasoning to the unfathomable mystery which it tries, forever vainly, to comprehend”

“There was a thing called Heaven; but all the same they used to drink enormous quantities of alcohol.”

“One believes things because one has been conditioned to believe them.”

“Most human beings have an almost infinite capacity for taking things for granted.”

“Conventions are stupid things; but even the children of the spirit must make some compromise with the world.”