Perhaps the nuclear physicists have come so near to the ultimate secrets that He thinks it time to bring their activities to a stop. And what simpler method could He devise than to let them carry their ingenuity to the point where they exterminate the human race?

While economics is about how people make choice, sociology is about how they don't have any choice to make.

A life without adventure is likely to be unsatisfying, but a life in which adventure is allowed to take whatever form it will is sure to be short.

Liberty is the right to do what I like; licence, the right to do what you like.

Work is of two kinds: first, altering the position of matter at or near the earth's surface relative to other matter; second, telling other people to do so.

Public opinion is always more tyrannical towards those who obviously fear it than towards those who feel indifferent to it.

To be able to fill leisure intelligently is the last product of civilization, and at present very few people have reached this level.