The supreme accomplishment is to blur the line between work and play.

Civilization is a movement and not a condition, a voyage and not a harbor.

We have been God-like in our planned breeding of our domesticated plants and animals, but we have been rabbit-like in our unplanned breeding of ourselves.

Civilizations die from suicide, not by murder.

It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it.

Civilizations in decline are consistently characterised by a tendency towards standardization and uniformity.

America is a large, friendly dog in a very small room. Every time it wags its tail, it knocks over a chair.