In all important respects, the man who has nothing but his physical power to sell has nothing to sell which it is worth anyone's money to buy

One of the chief duties of the mathematician in acting as an advisor ... is to discourage ... from expecting too much from mathematics.

the science of control and communication in the animal and the machine

Any use of a human being in which less is demanded of him and less is attributed to him than his full status is a degradation and a waste.

Any labor which competes with slave labor must accept the economic conditions of slave labor.

It is possible to believe in progress as a fact without believing in progress as an ethical principle; but in the catechism of many Americans, the one goes with the other.

Am I really a good mathematician?