The most important benefit of population size and growth is the increase it brings to the stock of useful knowledge. Minds matter economically as much as, or more than, hands or mouths.

We now have in our hands—really, in our libraries—the technology to feed, clothe, and supply energy to an ever-growing population for the next seven billion years.

The essence of wealth is the capacity to control the forces of nature, and the extent of wealth depends upon the level of technology and the ability to create new knowledge.

The main fuel to speed the world's progress is our stock of knowledge, and the brake is our lack of imagination.

Human beings create more than they destroy.

The increase in the world's population represents our victory over death.

All of us necessarily hold many casual opinions that are ludicrously wrong simply because life is far too short for us to think through even a small fraction of the topics that we come across.

Not understanding the process of a spontaneously-ordered economy goes hand-in-hand with not understanding the creation of resources and wealth.

The poet is a faker / Who's so good at his act / He even fakes the pain / Of pain he feels in fact.

We know nothing at all. All our knowledge is but the knowledge of schoolchildren. The real nature of things we shall never know.

There are three stages of man: he believes in Santa Claus; he does not believe in Santa Claus; he is Santa Claus.

You don't need to know the word of God; you need to know the God of the word.

I am happy being based in Leeds, I feel settled.

As for borrowing Mr. Whistler's ideas about art, the only thoroughly original ideas I have heard him express have had reference to his own superiority as a painter over painters greater than himself.

I think we don't need to be talking about hyphenated Americans, because we are all Americans, and we all want the same thing.

When I was real young I wanted to play baseball. I really loved playing center field, but that was never anything I was really ever that good at. I played up until I was in ninth grade.

Democracy is indispensable to socialism.

If you love an addle egg as well as you love an idle head, you would eat chickens i' th' shell.