Quotes by Robert Heinlein

"Women and cats will do as they please, and men and dogs should relax and get use to the idea."

The only religious opinion I feel sure of is this: self-awareness is not just a bunch of amino acids bumping together

A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.

"Never scare a little man, he may have to kill you."

Moderation in all things. Including moderation.

Always cut the cards...and smile when you lose.

Democracy is based on the assumption that a million men are wiser than one man. How's that again? I missed something. Autocracy is based on the assumption that one man is wiser than a million men. Let's play that over again too. Who decides?

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

When any government, or any church for that matter, undertakes to say to its subjects, "This you may not read, this you must not see, this you are forbidden to know," the end result is tyranny and oppression, no matter how holy the motives. Mighty little force is needed to control a man whose mind has been hoodwinked; contrariwise, no amount of force can control a free man, a man whose mind is free. No, not the rack, not fission bombs, not anything—you can't conquer a free man; the most you can do is kill him.

What are the facts? Again and again and again—what are the facts? Shun wishful thinking, ignore divine revelation, forget what "the stars foretell," avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history"; what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!