“The study of thinking machines teaches us more about the brain than we can learn by introspective methods. Western man is externalizing himself in the form of gadgets.”

“Man is a machine which reacts blindly to external forces and, this being so, he has no will, and very little control of himself, if any at all. What we have to study, therefore, is not psychology-for that applies only to a developed man-but mechanics. Man is not only a machine but a machine which works very much below the standard it would be capable of maintaining if it were working properly.”

“One wonders who knows more about the coyote, the zoologist who is able to study its external habit and dissect its cadaver or the Indian medicine man who identifies himself with the “spirit” of the coyote?”

“There is no scientific study more vital to man than the study of his own brain. Our entire view of the universe depends on it.”

“There is no way to learn endurance other than simply to endure. We can’t learn it in principle or in theory; only pain can teach it to us.”

“Our parents teach us the very first things we learn. They teach us about hearts.”