Never do anything against conscience even if the state demands it.

It should be possible to explain the laws of physics to a barmaid.

It was the experience of mystery - even if mixed with fear - that engendered religion.

I very rarely think in words at all. A thought comes, and I may try to express it in words afterwards.

Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves.

One strength of the communist system of the East is that it has some of the character of a religion and inspires the emotions of a religion.

I want to know all Gods thoughts; all the rest are just details.

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.

The devil has put a penalty on all things we enjoy in life. Either we suffer in health or we suffer in soul or we get fat.

We shall require a substantially new manner of thinking if mankind is to survive.