In order for us to have a future that's exciting and inspiring, it has to be one where we're a space-bearing civilization.

If you look at our current technology level, something strange has to happen to civilisations, and I mean strange in a bad way. And it could be that there are a whole lot of dead, one-planet civilisations.

Your probability of dying on Mars is much higher than earth. Really, the ad for going to Mars would be like Shackleton's ad for going to the Antarctic: "It's gonna be hard. There's a good chance of death, going in a little can through deep space. You might land successfully. Once you land successfully, you'll be working nonstop to build the base."

Civilisation will not last, freedom will not survive, peace will not be kept, unless a very large majority of mankind unite together to defend them and show themselves possessed of a constabulary power before which barbaric and atavistic forces will stand in awe.

Books, in all their variety, offer the human intellect the means whereby civilisation may be carried triumphantly forward.

The Battle of France is over. The Battle of Britain is about to begin. Upon this battle depends the future of Christian civilisation.