On Earth, we are unmanned by our longing for a pastoral past that never really existed; and that, if it had existed, could never exist again...on the Moon, there is no past to long for or dream about. There is no direction but forward.

Inspect every piece of pseudoscience and you will find a security blanket.

If you have talent, you will receive some measure of success - but only if you persist.

To bring about destruction by overcrowding, mass starvation, anarchy, the destruction of our most cherished values, there is no need to do anything. We need only do nothing except what comes naturally, and breed. And how easy it is to do nothing

If a conclusion is not poetically balanced, it cannot be scientifically true.

John Dalton's records, carefully preserved for a century, were destroyed during the World War II bombing of Manchester. It is not only the living who are killed in war.

Oh, for a pin that would puncture pretension!