Until we get rid of religion, we won't be able to conduct the search for God.

But he knew well enough that any man in the right circumstances could be dehumanised by panic.

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.

Behind every man now alive stand thirty ghosts, for that is the ratio by which the dead outnumber the living.

I sometimes wonder how we spent leisure time before satellite television and Internet came along…and then I realise that I have spent more than half of my life in the ‘dark ages’!

. . . Moon-Watcher felt the first faint twinges of a new and potent emotion. It was a vague and diffuse sense of envy--of dissatisfaction with his life. He had no idea of its cause, still less of its cure; but discontent had come into his soul, and he had taken one small step toward humanity.

No one of intelligence resents the inevitable.