Better contraceptives will control population only if people will use them. A nuclear holocaust can be prevented only if the conditions under which nations make war can be changed. The environment will continue to deteriorate until pollution practices are abandoned. We need to make vast changes in human behavior.

The real question is not whether machines think but whether men do. The mystery which surrounds a thinking machine already surrounds a thinking man.

A disappointment is not generally an oversight. It might just be the best one can do the situation being what it is. The genuine error is to quit attempting.

A permissive government is a government that leaves control to other sources.

The speaker does not feel the grammatical rules he is said to apply in composing sentences, and men spoke grammatically for thousands of years before anyone knew there were rules.

Each of us has interests which conflict the interests of everybody else... 'everybody else' we call 'society'. It's a powerful opponent and it always wins. Oh, here and there an individual prevails for a while and gets what he wants. Sometimes he storms the culture of a society and changes it to his own advantage. But society wins in the long run, for it has the advantage of numbers and of age.

Many social practices essential to the welfare of the species involve the control of one person by another, and no one can suppress them who has any concern for human achievements