Progress imposes not only new possibilities for the future but new restrictions.

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

The more we get out of the world the less we leave, and in the long run we shall have to pay our debts at a time that may be very inconvenient for our own survival.

Let us remember that the automatic machine is the precise economic equivalent of slave labor. Any labor which competes with slave labor must accept the economic consequences of slave labor.

I have said that the modern man, and especially the modern American, however much 'know-how' he may have, has very little 'know-what'

Scientific discovery consists in the interpretation for our own convenience of a system of existence which has been made with no eye to our convenience at all.

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