I don't believe in astrology; I'm a Sagittarius and we're skeptical.

The person one loves never really exists, but is a projection focused through the lens of the mind onto whatever screen it fits with least distortion.

Using material ferried up by rockets, it would be possible to construct a "space station" in ... orbit. The station could be provided with living quarters, laboratories and everything needed for the comfort of its crew, who would be relieved and provisioned by a regular rocket service. (1945)

The realisation that our small planet is only one of many worlds gives mankind the perspective it needs to realise sooner that our own world belongs to all its creatures.

Isn't killing people in the name of God a pretty good definition of insanity?

I'm sure we would not have had men on the Moon if it had not been for Wells and Verne and the people who write about this and made people think about it. I'm rather proud of the fact that I know several astronauts who became astronauts through reading my books.

It must be wonderful to be seventeen, and to know everything.