1,085 Quotes by Robert A. Heinlein

It would take centuries and he must grow and grow and grow, but he was in no hurry--he grokked that Eternity and the ever-beautifully-changing Now were identical.

There ain't no such thing as a free lunch.

Magic is not science, it is a collection of ways to do things ways that work but often we don't know why.

Sin lies only in hurting others unnecessarily. All other "sins" are invented nonsense.

Money is truthful. If a man speaks of honor, make him pay cash.

There is no such thing as 'social gambling.' Either you are there to cut the other bloke's heart out and eat it -- or you're a sucker. If you don't like this choice -- don't gamble.

Man has no moral instinct. He is not born with moral sense. You were not born with it, I was not - and a puppy has none. We acquire moral sense, when we do, through training, experience, and hard sweat of the mind.

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.

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.