Robert A. Heinlein on Philosophy

"“Mr. Jones, has it ever occurred to you, the world being what it is, that women sometimes prefer not to appear too bright?"

"Time after time he had fallen into the Cartesian fallacy, mistaking clear reasoning for correct reasoning."

"All normal human beings have soi-disant mixed-up glands. The race is divided into two parts: those who know this and those who do not."

"The difference between science and the fuzzy subjects is that science requires reasoning, while those other subjects merely require scholarship."

"One can’t expect logic from males; they think with their testicles and act from their emotions."

"The best things in history are accomplished by people who get “tired of being shoved around."

"Random numbers are to a computer what free will is to a human being."

"Between being ‘right’ and being kind, I know which way I vote."

"Being a mother is an attitude, not a biological relation."

"When you haven’t data, guessing is illogical."

"“I was just trying to show you,” he went on, “just how insubstantial a ‘common sense’ idea can be when you pin it down. Neither ‘common sense’ nor ‘logic’ can prove anything. Proof comes from experiment, or to put it another way, from experience, and from nothing else."

"I told him it was wrong, I said that he mustn’t take the law in his own hands. “What law?” he said. “There isn’t any law here. And you aren’t being logical, Pod. Anything that is right for a group to do is right for one person to do."

"Logic is a feeble reed, friend. "Logic" proved that airplanes can't fly and that H-bombs won't work and that stones don't fall out of the sky. Logic is a way of saying that anything which didn't happen yesterday won't happen tomorrow."

"They made the predictable fuss about taking a cat into a room and an autobellhop is not responsive to bribes—hardly an improvement. But the assistant manager had more flexibility in his synapses; He listened to reason as long as it was crisp and rustled."

"I’m going to put it to you straight. Never mind about being chief engineer of a planet; these days even a farmer needs the best education he can get. Without it he’s just a country bumpkin, a stumbling peasant, poking seeds into the ground and hoping a miracle will make them grow."

"The Old Man’s unique gift was the ability to reason logically with unfamiliar, hard-to-believe facts as easily with the commonplace. Not much, eh? Most minds stall dead when faced with facts which conflict with basic beliefs; “I-just-can’t-believe-it” is all one word to highbrows and dimwits alike."

"No philosophy that he had ever heard or read gave any reasonable purpose for man's existence, nor any rational clue to his proper conduct. Basking in the sunshine might be as good a thing to do with one's life as any other — but it was not for him and he knew it, even if he could not define how he knew it."

"I now define "moral behavior" as "behavior that tends toward survival." I won't argue with philosophers or theologians who choose to use the word "moral" to mean something else, but I do not think anyone can define "behavior that tends toward extinction" as being "moral" without stretching the word "moral" all out of shape."

"Time is never a problem on the God level. Or space. Whatever needed to deceive you was provided. But no more than that. That is the conservative principle in art at the God level. While I can't do it, not being at that level, I have seen a lot of it done. A skillful Artist in shapes and appearances does no more than necessary to create His effect."

"The Almighty-God idea came under attack because it explained nothing; it simply pushed all explanations one stage farther away. In the nineteenth century atheistic positivism started displacing the Almighty-God notion in that minority of the population that bathed regularly. Atheism had a limited run, as it, too, explains nothing, being merely Godism turned upside down."

"There are three schools of magic. One: State a tautology, then ring the changes on its corollaries; that’s philosophy. Two: Record many facts. Try to see a pattern. Then make a wrong guess at the next fact; that’s science. Three: Awareness that you live in a malevolent universe controlled by Murphy’s Law, sometimes offset in part by Brewster’s Factor: that’s engineering."

"A religion is sometime a source of happiness, and I would not deprive anyone of happiness. But it is a comfort appropriate for the weak, not for the strong. The great trouble with religion — any religion — is that a religionist, having accepted certain propositions by faith, cannot thereafter judge those propositions by evidence. One may bask at the warm fire of faith or choose to live in the bleak uncertainty of reason — but one cannot have both."

"A rational anarchist believes that concepts, such as "state" and "society" and "government" have no existence save as physically exemplified in the acts of self-responsible individuals. He believes that it is impossible to shift blame, share blame, distribute blame ... as blame, guilt, responsibility are matters taking place inside human beings singly and nowhere else. But being rational, he knows that not all individuals hold his evaluations, so he tries to live perfectly in an imperfect world ... aware that his efforts will be less than perfect yet undismayed by self-knowledge of self-failure."