Robert A. Heinlein, (July 7, 1907 - May 8, 1988):
A competent and self-confident person is incapable of
jealousy in anything. Jealousy is invariably a symptom of
A poet who reads his verse in public may have other nasty
A reverence for life does not require one to respect
nature's obvious mistakes.
A zygote is a gamete's way of producing more gametes.
This may be the purpose of the universe.
Age does not bring wisdom. Often it merely changes simple
stupidity into arrogant conceit.
Age is not an accomplishment, and youth is not a sin.
All societies are based on rules to protect pregnant
women and young children.
Always listen to the experts. They'll tell you what can't
be done and why. Then do it.
Always tell her she's beautiful, especially if she
An armed society is a polite society.
Being right too soon is socially unacceptable.
Belief gets in the way of learning.
Climate is what you expect. Weather is what you get.
Don't explain computers to laymen. Simpler to explain sex
Everything in excess! To enjoy the flavor of life, take
big bites. Moderation is for monks.
Everything is theoretically impossible, until it's done.
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.
Fulfillment in life is loving a good woman and killing a
Getting up early does not get more work done... any more
than you can make a piece of string longer by cutting off
one end and tying it onto the other.
Government is an inescapable disease of human beings.
History has the relation to truth that theology has to
religion- i.e., none to speak of.
I believe in the honest craft of workmen. Take a look
around you. There never were enough bosses to check up on
all that work. From Independence Hall to the Grand Coulee
Dam, these things were built level and square by craftsmen
who were honest in their bones.
In a society in which it is a moral offense to be
different from your neighbor your only escape is to never
let them find out.
In all matters of government the correct answer is
usually: Do nothing.
In the absence of clearly-defined goals, we become
strangely loyal to performing daily trivia until ultimately
we become enslaved by it.
Intangibles are the most honest merchandise anyone can
sell. They are always worth whatever you are willing to pay
for them and they never wear out.
It is amazing how much mature wisdom resembles being too
It never does any good to warn a man about his wife.
Little girls, like butterflies, need no excuse.
Logic is a way of saying that anything that didn't happen
yesterday won't happen tomorrow.
Love your country, but never trust its government.
Man can be chained but he cannot be domesticated, and
eventually he always breaks his chains.
Man is not a rational animal, he is a rationalizing
Men rarely (if ever) manage to dream up a god superior to
themselves. Most gods have the manners and morals of a
Never appeal to a man's better nature. He may not have
one. Invoking his self-interest gives you more leverage.
Never frighten a little man. He'll kill you.
Never try to outstubborn a cat.
Never try to teach a pig to sing. It's a waste of time
and annoys the pig.
Never underestimate the power of human stupidity.
No matter where or what, there are makers, takers, and
Obscurity is the refuge of incompetence.
One man's religion is another man's belly laugh.
Progress isn't made by early risers. It's made by lazy
men trying to find easier ways to do something.
Secrecy is the beginning of tyranny.
Self-awareness is not just a bunch of amino acids bumping
Sex should be friendly. Otherwise stick to mechanical
toys; it's more sanitary.
Sex without love is merely healthy exercise.
Sin lies only in hurting other people unnecessarily. All
other sins are invented nonsense.
Specialization is for insects.
Stupidity cannot be cured with money, or through
education, or by legislation.
Stupidity is the only universal capital crime; the
sentence is death, there is no appeal, and execution is
carried out automatically and without pity.
Taxes are not levied for the benefit of the taxed.
The early worm deserves the bird.
The nice thing about citing god as an authority is that
you can prove anything you set out to prove.
The truth of a proposition has nothing to do with its
credibility. And vice versa.
The United States has become a place where entertainers
and professional athletes are mistaken for people of
There is nothing wrong with writing, so long as you do it
in private and wash your hands afterward.
Was there ever a time when the majority was right?
What are the marks of a sick culture? It is a bad sign
when the people of a country stop identifying themselves
with the country and start identifying with a group. A
racial group. Or a religion. Or a language. Anything, as
long as it isn't the whole population.
Widows are far better than brides. They don't tell, they
won't yell, they don't swell, they rarely smell, and they're
grateful as hell.
Women and cats will do as they please. Men and dogs had
better get used to it.
Yield to temptation. It may not pass your way again.
Never worry about theory as long as the machinery does
what it's supposed to do.
The death rate is the same for us as for anybody... one
person, one death, sooner or later.
How you behave toward cats here below determines your
status in Heaven.
Aside from a cold appreciation of my own genius I felt
that I was a modest man.
Nobody ever wins a lawsuit but the lawyers.
There is no such thing as luck; there is only adequate or
inadequate preparation to cope with a statistical
Television leaves no external scars.
Being a mother is an attitude, not a biological
The less respect an older person deserves the more
certain he is to demand it from anyone younger.
Being intelligent is not a felony. But most societies
evaluate it as at least a misdemeanor.
Delusions are often functional. A mother's opinions about
her children's beauty, intelligence, goodness, et cetera ad
nauseam, keep her from drowning them at birth.
Do not handicap your children by making their lives
I don't trust a man who talks about ethics when he is
picking my pocket.
If you don't like yourself, you can't like other
It is better to copulate than never.
Evolution is a process that never stops. Baboons who fail
to exhibit moral behavior do not survive; they wind up as
meat for leopards.
I usually read the obituaries first as there is always
the happy chance that one of them will make my day.
Anyone who considers protocol unimportant has never dealt
with a cat.
You don’t pay back, you pay forward.
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