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.
I don't believe in astrology; I'm a Sagittarius and we're skeptical.
Politicians should read science fiction, not westerns and detective stories.
It has yet to be proven that intelligence has any survival value.
This is the first age that's ever paid much attention to the future, which is a little ironic since we may not have one.
The intelligent minority of this world will mark 1 January 2001 as the real beginning of the 21st century and the Third Millennium.
When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
Reading computer manuals without the hardware is as frustrating as reading manuals without the software.
But the only way of discovering the limits of the possible is to venture a little way past them into the impossible.
A faith that cannot survive collision with the truth is not worth many regrets.
I don't pretend we have all the answers. But the questions are certainly worth thinking about.
The only real problem in life is what to do next.
The only way to discover the limits of the possible is to go beyond them into the impossible.
It may be that our role on this planet is not to worship God - but to create him.
The greatest tragedy in mankind's entire history may be the hijacking of morality by religion.
Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering.
Paul Davies - Michael Cunningham - John Grisham - Herbert Kaufman - Henry Drummond - Edward Fairfax - Denis Waitley - Catherine Crowe - Bill Bryson - Arthur C. Clarke