
Life is pleasant. Death is peaceful. It's the transition that's troublesome.

A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.

All sorts of computer errors are now turning up. You'd be surprised to know the number of doctors who claim they are treating pregnant men.

And above all things, never think that you're not good enough yourself. A man should never think that. My belief is that in life people will take you at your own reckoning.

Creationists make it sound as though a 'theory' is something you dreamt up after being drunk all night.

Dalton's records, carefully preserved for a century, were destroyed during the World War II bombing of Manchester. It is not only the living who are killed in war.

Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition.

I am not a speed reader. I am a speed understander.

I don't believe in an afterlife, so I don't have to spend my whole life fearing hell, or fearing heaven even more. For whatever the tortures of hell, I think the boredom of heaven would be even worse.

I don't believe in personal immortality; the only way I expect to have some version of such a thing is through my books.

I write for the same reason I breathe - because if I didn't, I would die.

If knowledge can create problems, it is not through ignorance that we can solve them.

Meanwhile, fears of universal disaster sank to an all time low over the world.

People who think they know everything are a great annoyance to those of us who do.

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

When I read about the way in which library funds are being cut and cut, I can only think that American society has found one more way to destroy itself.

The advance of genetic engineering makes it quite conceivable that we will begin to design our own evolutionary progress.