Courage is the complement of fear. A man who is fearless cannot be courageous. [He is also a fool.]

— Robert A. Heinlein

Customs, morals--is there a difference?

— Robert A. Heinlein

Customs tell a man who he is, where he belongs, what he must do. Better illogical customs than none; men cannot live together without them. From an anthropologist's view, 'justice' is a search for workable customs.

— Robert A. Heinlein

Darling, a true lady takes off her dignity with her clothes and does her whorish best. At other times you can be as modest and dignified as your persona requires.

— Robert A. Heinlein

Daughters can spend ten percent more than a man can make in any usual occupation. That’s a law of nature, to be known henceforth as ‘Harsh aw’s Law.

— Robert A. Heinlein

Death isn't funny." "Then why are there so many jokes about death? Jill, with us — us humans — death is so sad that we must laugh at it.

— Robert A. Heinlein

Democracy can't work. Mathematicians, peasants, and animals, that's all there is-- so democracy, a theory based on the assumption that mathematicians and peasants are equal, can never work. Wisdom is not additive; its maximum is that of the wisest man in a given group.

— Robert A. Heinlein

Does history record any case in which the majority was right?

— Robert A. Heinlein

Don't explain computers to laymen. Simpler to explain sex to a virgin.

— Robert A. Heinlein

Don't handicap your children by making their lives easy.

— Robert A. Heinlein