"It is always easier to believe than to deny. Our minds are naturally affirmative; it is not till the second or third thought that doubt begins. Belief is so vital and necessary that one would say the tendency was made strong at the perpetual risk of extra belief and superstition; it were better to believe too much than not enough. Hence mankind have always believed too much, as if to make sure that the anchor hold. To believe just enough, to free his mind from all cant and from all illusion, and see things just as in themselves they are, is the aim of the philosopher or of the true skeptic."

“Every day is a Sabbath to me. All pure water is holy water, and this earth is a celestial abode.”

“In us or through us the Primal Mind will have contemplated and enjoyed its own works and will continue to do so as long as human life endures on this planet.”

“Man’s craving for the supernatural is as natural as our discounting of the present moment... The natural becomes trite and commonplace to us and we take refuge in an imaginary world above and beyond it.”

“Science has done more for the development of Western civilization in one hundred years than Christianity did in eighteen hundred.”

“Science, in the broadest sense, is simply that which may be verified; but how much of that which theology accepts and goes upon is verifiable by human reason or experience?”

“The deeper our insight into the methods of nature . . . the more incredible the popular Christianity seems to us.”