The method of "postulating" what we want has many advantages; they are the same as the advantages of theft over honest toil.

When we perceive any object of a familiar kind, much of what appears subjectively to be immediately given is really derived from past experience.

But it is just this characteristic of simplicity in the laws of nature hitherto discovered which it would be fallacious to generalize, for it is obvious that simplicity has been a part cause of their discovery, and can, therefore, give no ground for the supposition that other undiscovered laws are equally simple.

To avoid the various foolish opinions to which mankind are prone, no superhuman genius is required. A few simple rules will keep you, not from all error, but from silly error.

Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own.

We need a science to save us from science.

War can only be abolished by the establishment of a world government.