If a grasshopper tries to fight a lawnmower, one may admire his courage but not his judgement..

To permit irresponsible authority is to sell disaster..

Never trust machinery more complicated than a knife and fork..

Specialisation is for insects!.

A fool cannot be protected from his folly. If you attempt to do so, you will not only arouse his animosity but also you will be attempting to deprive….

Come Judgment Day, we may find that Mumbo Jumbo the God of the Congo was the Big Boss all along..

Television leaves no external scars..

Why don't they make more science fiction movies? The answer to any question starting, Why don't they- is almost always, Money..

Stupidity cannot be cured with money, or through education, or by legislation..

A long and wicked life followed by five minutes of perfect grace gets you into Heaven. An equally long life of decent living and good works followed ….

I am not going to talk about religious beliefs, but about matters so obvious that it has gone out of style to mention them..

I don't trust a man who talks about ethics when he is picking my pocket. But if he is acting in his own self-interest and says so, I have usually bee….

Never appeal to a man's 'better nature.' He may not have one. Invoking his self-interest gives you more leverage..

Who is more real? Homer or Ulysses? Shakespeare or Hamlet? Burroughs or Tarzan?.

But space travel can't ease the pressure on a planet grown too crowded not even with today's ships and probably not with any future ships-because stu….

Nothing could go wrong because nothing had...I meant "nothing would." No - Then I quit trying to phrase it, realizing that if time travel ever became….

Money is a powerful aphrodisiac but flowers work almost as well..

I was there to see beautiful naked women. So was everybody else. It's a common failing..

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

A zest for living must include a willingness to die..

Damnit! Nationalism should stop at the stratosphere!.