They had not yet attained the stupefying boredom of omnipotence; their experiments did not always succeed.

'The Devil in the Dark' impressed me because it presented the idea, unusual in science fiction then and now, that something weird, and even dangerous, need not be malevolent. That is a lesson that many of today's politicians have yet to learn.

Once you can reproduce a phenomenon, you are well on the way to understanding it.

If children have interests, then education happens.

I have a fantasy where Ted Turner is elected President but refuses because he doesn't want to give up power.

A faith that cannot survive collision with the truth is not worth many regrets.

The moon is the first milestone on the road to the stars.