Robert A. Heinlein Quotes

Sex without love is merely healthy exercise.

One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen.

One man's "magic" is another man's engineering. "Supernatural" is a null word.

Never underestimate the power of human stupidity.

Never worry about theory as long as the machinery does what it's supposed to do.

No statement should be believed because it is made by an authority.

One man's theology is another man's belly laugh.

One of the sanest, surest, and most generous joys of life comes from being happy over the good fortune of others.

Political tags - such as royalist, communist, democrat, populist, fascist, liberal, conservative, and so forth - are never basic criteria. The human race divides politically into those who want people to be controlled and those who have no such desire.

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

The supreme irony of life is that hardly anyone gets out of it alive.

The universe never did make sense; I suspect it was built on government contract.

Theology is never any help; it is searching in a dark cellar at midnight for a black cat that isn't there. Theologians can persuade themselves of anything.

There is no way that writers can be tamed and rendered civilized or even cured. The only solution known to science is to provide the patient with an isolation room, where he can endure the acute stages in private and where food can be poked in to him with a stick.

They didn't want it good, they wanted it Wednesday.

To be matter-of-fact about the world is to blunder into fantasy - and dull fantasy at that, as the real world is strange and wonderful.

When a place gets crowded enough to require ID's, social collapse is not far away. It is time to go elsewhere. The best thing about space travel is that it made it possible to go elsewhere.

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.

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

Writing is not necessarily something to be ashamed of, but do it in private and wash your hands afterwards.

Yield to temptation. It may not pass your way again.

You can have peace. Or you can have freedom. Don't ever count on having both at once.

Women will forgive anything. Otherwise, the race would have died out long ago.

Sin lies only in hurting other people unnecessarily. All other "sins" are invented nonsense. (Hurting yourself is not sinful - just stupid).

The more you love, the more you can love--and the more intensely you love. Nor is there any limit on how many you can love. If a person had time enough, he could love all of that majority who are decent and just.