As machines get to be more and more like men, men will come to be more like machines.

Happiness is itself a kind of gratitude.

Both the cockroach and the bird would get along very well without us, although the cockroach would miss us most.

Every time a value is born, existence takes on a new meaning; every time one dies, some part of that meaning passes away.

The impulse to mar and to destroy is as ancient and almost as nearly universal as the impulse to create. The one is an easier way than the other of demonstrating power.

Nature, in her blind thirst for life has filled every possible cranny of the rotting earth with some sort of fantastic creature.

The famous balance of nature is the most extraordinary of all cybernetic systems. Left to itself, it is always self-regulated.