Robert A. Heinlein

Morals — all correct moral laws — derive from the instinct to survive. Moral behavior is survival behavior above the individual level.

"Ah yes, [life, liberty and the pursuit of happiness]... Life? What 'right' to life has a man who is drowning in the Pacific? The ocean will not hearken to his cries. What 'right' to life has a man who must die to save his children? If he chooses to save his own life, does he do so as a matter of 'right'? If two men are starving and cannibalism is the only alternative to death, which man's right is 'unalienable'? And is it 'right'? As to liberty, the heroes who signed the great document pledged themselves to buy liberty with their lives. Liberty is never unalienable; it must be redeemed regularly with the blood of patriots or it always vanishes. Of all the so-called natural human rights that have ever been invented, liberty is least likely to be cheap and is never free of cost. The third 'right'?—the 'pursuit of happiness'? It is indeed unalienable but it is not a right; it is simply a universal condition which tyrants cannot take away nor patriots restore. Cast me into a dungeon, burn me at the stake, crown me king of kings, I can 'pursue happiness' as long as my brain lives—but neither gods nor saints, wise men nor subtle drugs, can ensure that I will catch it."

People don’t really want change, any change at all — and xenophobia is very deep-rooted. But we progress, as we must — if we are to go out to the stars.

I have never been impressed by the formal schools of ethics. I had sampled them — public libraries are a ready source of recreation for an actor short of cash — but I had found them as poor in vitamins as a mother-in-law’s kiss. Given time and plenty of paper, a philosopher can prove anything. I had the same contempt for the moral instruction handed to most children. Much of it is prattle and the parts they really seem to mean are dedicated to the sacred proposition that a “good” child is one who does not disturb mother’s nap and a “good” man is one who achieves a muscular bank account without getting caught. No, thanks!

“Yes, maybe it’s just one colossal big joke with no point to it.” Lazarus stood up and stretched and scratched his ribs. “But I can tell you this, Andy, whatever the answers are, here’s one monkey that’s going to keep on climbing, and looking around him to see what he can see, as long as the tree holds out.”

“People tend to fall into three psychological types, all differently motivated. There is the type, motivated by economic factors, money...And there is the type motivated by ‘face,’ or pride. This type is a spender, fighter, boaster, lover, sportsman, gambler; he has a will to power and an itch for glory. And there is the professional type, which claims to follow a code of ethics rather than simply seeking money or glory—priests and ministers, teachers, scientists, medical men, some artists and writers. The idea is that such a man believes that he is devoting his life to some purpose more important than his individual self. You follow me?”

“What course of action do you favor?”

“Me? Why, none. Mary, if there is any one thing I have learned in the past couple of centuries, it’s this: These things pass. Wars and depressions and Prophets and Covenants—they pass. The trick is to stay alive through them.”

Wong shook his head sadly. “I sometimes think that modern education is deliberately designed to handicap a boy.”

I think perhaps of all the things a police state can do to its citizens, distorting history is possibly the most pernicious.

Matt, you are suffering from a disease of youth—you expect moral problems to have nice, neat, black-and-white answers.

“Do you seriously expect to start a rebellion with picayune stuff like that?”

“It’s not picayune stuff, because it acts directly on their emotions, below the logical level. You can sway a thousand men by appealing to their prejudices quicker than you can convince one man by logic. It doesn’t have to be a prejudice about an important matter either.

From my point of view, a great deal of openly expressed piety is insufferable conceit.