The process of scientific discovery is, in effect, a continual flight from wonder.

Science without religion is lame. Religion without science is blind.

Politics is for the present, but an equation is for eternity.

Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.

I used to go away for weeks in a state of confusion.

There is no logical way to the discovery of these elemental laws. There is only the way of intuition, which is helped by a feeling for the order lying behind the appearance.