Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.

There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.

Simplification of modes of proof is not merely an indication of advance in our knowledge of a subject, but is also the surest guarantee of readiness for farther progress.

Let nobody be afraid of true freedom of thought. Let us be free in thought and criticism; but, with freedom, we are bound to come to the conclusion that science is not antagonistic to religion, but a help to it.

I believe that the more thoroughly science is studied, the further does it take us from anything comparable to atheism.

I have no satisfaction in formulas unless I feel their numerical magnitude.

In science there is only physics; all the rest is stamp collecting.