But does Man have any 'right' to spread through the universe? Man is what he is, a wild animal with the will to survive, and (so far) the ability, against all competition. Unless one accepts that, anything one says about morals, war, politics, you name it, is nonsense. Correct morals arise from knowing what man is, not what do-gooders and well-meaning old Aunt Nellies would like him to be. The Universe will let us know - later - whether or not Man has any "right" to expand through it.

Man can be chained, but he cannot be domesticated.

The greatest productive force is human selfishness.

Never underestimate the power of human stupidity.

In this complex world, the scientific method, and the consequences of the scientific method are central to everything the human race is doing and to wherever we are going.

A little more money won't do you any good - because daughters can use up ten percent more than a man can make in any normal occupation, regardless of the amount.

Love is what still goes on when you're not horny.