Below you will find our collection of inspirational, wise, and humorous
old Robert A. Heinlein quotes, Robert A. Heinlein sayings, and Robert A. Heinlein proverbs, collected over the years from a variety
of sources.'
Everything is theoretically impossible until it is done.Robert A. Heinlein
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If time travel ever became widespread, English grammar was going to have to add a whole new set of tenses to describe reflexive situations -- conjugations that would make the French literary tenses and the Latin historical tenses look simple.Robert A. Heinlein
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Never pick up a stray kitten... unless you've already made up your mind to be owned by it. Robert A. Heinlein
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There ought not to be anything in the whole universe that man can't poke his nose into—that's the way we're built and I assume that there's some reason for it.Robert A. Heinlein
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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
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Anyone who cannot cope with mathematics is not fully human. At best, he is a tolerable subhuman who has learned to wear his shoes, bathe, and not make messes in the house.Robert A. Heinlein
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It is said that God notes each sparrow that falls. And so He does...because the sparrow is God. And when a cat stalks a sparrow, both of them are God, carrying out God's thoughts.Robert A. Heinlein
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"Love is that condition in which the happiness of another person is essential to your own."Robert A. Heinlein
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Government! Three-fourths parasitic and the other fourth Stupid fumbling.Robert A. Heinlein