Unfortunately, however, power is sweet, and the man who in the beginning seeks power merely in order to have scope for his benevolence is likely, before long, to love the power for its own sake.

Most human beings, though in varying degrees, desire to control, not only their own lives but also the lives of others

There is an artist imprisoned in each one of us. Let him loose to spread joy everywhere.

I am delighted to know that Principia Mathematica can now be done by machinery. . . I am quite willing to believe that anything in deductive logic can be done by machinery.

The law of causality, I believe, like much that passes muster among philosophers, is a relic of a bygone age, surviving, like the monarchy, only because it is erroneously supposed to do no harm.

When conscious activity is wholly concentrated on some one definite purpose, the ultimate result, for most people, is lack of balance accompanied by some form of nervous disorder.

The desire to understand the world and the desire to reform it are the two great engines of progress, without which human society would stand still or retrogress.