Spiritual energy flows in and produces effects, psychological or material, within the phenomenal world.

The greatest weapon against stress is our ability to choose one thought over another.

The question of free will is insoluble on strictly psychological grounds.

It is so human a book that I don't see how belief in its divine authority can survive the reading of it.

Do every day or two something for no other reason than its difficulty.

Faith means belief in something concerning which doubt is theoretically possible.

The most ancient parts of truth . . . also once were plastic. They also were called true for human reasons. They also mediated between still earlier truths and what in those days were novel observations. Purely objective truth, truth in whose establishment the function of giving human satisfaction in marrying previous parts of experience with newer parts played no role whatsoever, is nowhere to be found. The reasons why we call things true is the reason why they are true, for to be true means only to perform this marriage-function.