A scientist may not be sure of the answer, but he's often sure he can find one. And that's a condition which is clearly not enjoyed by philosophy.

The simplest and most satisfactory view is that thought is simply behavior - verbal or nonverbal, covert or overt. It is not some mysterious process responsible for behavior but the very behavior itself in all the complexity of its controlling relations.

It is a surprising fact that those who object most violently to the manipulation of behaviour nevertheless make the most vigorous effort to manipulate minds.

Some of us learn control, more or less by accident. The rest of us go all our lives not even understanding how it is possible, and blaming our failure on being born the wrong way.

Any single historical event is too complex to be adequately known by anyone. It transcends all the intellectual capacities of men. Our practice is to wait until a sufficient number of details have been forgotten. Of course things seem simpler then! Our memories work that way; we retain the facts which are easiest to think about.

Something doing every minute' may be a gesture of despair-or the height of a battle against boredom.

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