Ignorance per se is not nearly as dangerous as ignorance of ignorance.

The reason that truth is stranger than fiction is that fiction has to have a rational thread running through it in order to be believable, whereas reality may be totally irrational.

Nothing is as easy to make as a promise this winter to do something next summer; this is how commencement speakers are caught.

Life is, if anything, the art of combination. Of discrimination. Of freely picking one's own personal pattern out of a hundred choices. Not letting it be picked for you—either by the Establishment, or by the Rebels. Conformity of Hip is no better than Conformity of Square.

"Terrorism" is what we call the violence of the weak, and we condemn it; "war" is what we call the violence of the strong, and we glorify it.

When we inform, we lead from strength; when we communicate, we lead from weakness—and it is precisely this confession of mortality that engages the ears, heads and hearts of those we want to enlist as allies in a common cause.

The real danger is not that computers will begin to think like men, but that men will begin to think like computers.