Rhetoric takes no real account of the art in literature and morality takes no account of the art in life.

Happiness is itself a kind of gratitude.

In our hearts those of us who know anything worth knowing know that in March a new year begins, and if we plan any new leaves, it will be when the rest of Nature is planning them too.

Technology made large populations possible; large populations now make technology indispensable.

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

What a man knows is everywhere at war with what he wants.

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