Top 50 Robert A. Heinlein Quotes

Words matter. These are the best Robert A. Heinlein Quotes, and they’re great for sharing with your friends.

The difference between science and the fuzzy subjects i

The difference between science and the fuzzy subjects is that science requires reasoning while those other subjects merely require scholarship.
Robert A. Heinlein
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.
Robert A. Heinlein
May you live as long as you wish and love as long as you live.
Robert A. Heinlein
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.
Robert A. Heinlein
One man’s ‘magic’ is another man’s engineering. ‘Supernatural’ is a null word.
Robert A. Heinlein
No statement should be believed because it is made by an authority.
Robert A. Heinlein
Sex without love is merely healthy exercise.
Robert A. Heinlein
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.
Robert A. Heinlein
Don’t handicap your children by making their lives easy.
Robert A. Heinlein
Don’t handicap your children by making their lives easy.
Robert A. Heinlein
They didn’t want it good, they wanted it Wednesday.
Robert A. Heinlein
I am free because I know that I alone am morally responsible for everything I do. I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do.
Robert A. Heinlein
It’s an indulgence to sit in a room and discuss your beliefs as if they were a juicy piece of gossip.
Robert A. Heinlein
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.
Robert A. Heinlein
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.
Robert A. Heinlein
I never learned from a man who agreed with me.
Robert A. Heinlein
You can have peace. Or you can have freedom. Don’t ever count on having both at once.
Robert A. Heinlein
One man’s theology is another man’s belly laugh.
Robert A. Heinlein
Everything is theoretically impossible, until it is done.
Robert A. Heinlein
By cultivating the beautiful we scatter the seeds of heavenly flowers, as by doing good we cultivate those that belong to humanity.
Robert A. Heinlein
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.
Robert A. Heinlein
Don’t ever become a pessimist… a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events.
Robert A. Heinlein
For me, politeness is a sine qua non of civilization.
Robert A. Heinlein
No statement should be believed because it is made by an authority.
Robert A. Heinlein
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.
Robert A. Heinlein
Don’t ever become a pessimist… a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events.
Robert A. Heinlein
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.
Robert A. Heinlein
One man’s theology is another man’s belly laugh.
Robert A. Heinlein
They didn’t want it good, they wanted it Wednesday.
Robert A. Heinlein
Never insult anyone by accident.
Robert A. Heinlein
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.
Robert A. Heinlein
Love is that condition in which the happiness of anothe

Love is that condition in which the happiness of another person is essential to your own… Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy.
Robert A. Heinlein
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.
Robert A. Heinlein
Sex without love is merely healthy exercise.
Robert A. Heinlein
Never insult anyone by accident.
Robert A. Heinlein
Everything is theoretically impossible, until it is done.
Robert A. Heinlein
A society that gets rid of all its troublemakers goes downhill.
Robert A. Heinlein
You can have peace. Or you can have freedom. Don’t ever count on having both at once.
Robert A. Heinlein
By cultivating the beautiful we scatter the seeds of heavenly flowers, as by doing good we cultivate those that belong to humanity.
Robert A. Heinlein
Love is that condition in which the happiness of another person is essential to your own… Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy.
Robert A. Heinlein
I never learned from a man who agreed with me.
Robert A. Heinlein
Being right too soon is socially unacceptable.
Robert A. Heinlein
For me, politeness is a sine qua non of civilization.
Robert A. Heinlein
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.
Robert A. Heinlein
Women and cats will do as they please, and men and dogs should relax and get used to the idea.
Robert A. Heinlein
Being right too soon is socially unacceptable.
Robert A. Heinlein
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.
Robert A. Heinlein
The difference between science and the fuzzy subjects is that science requires reasoning while those other subjects merely require scholarship.
Robert A. Heinlein
Writing is not necessarily something to be ashamed of, but do it in private and wash your hands afterwards.
Robert A. Heinlein
The universe never did make sense; I suspect it was built on government contract.
Robert A. Heinlein