One cannot play chess if one becomes aware of the pieces as living souls and of the fact that the Whites and the Blacks have more in common with each other than with the players. Suddenly one loses all interest in who will be champion.

On the question of whether a behavioral science can in principle be constructed, we shall take no sides. That some kinds of human behavior can be described and even predicted in terms of objectively verifiable and quantifiable data seems to us to have been established.

To gain knowledge, we must learn to ask the right questions; and to get answers, we must act, not wait for answers to occur to us.

Do you know that all great spurts in...progress came just after some unorthodox ideas or exotic impressions had penetrated into a closed system?

One cannot play chess if one becomes aware of the pieces as living souls and of the fact that the Whites and the Blacks have more in common with each other than with the players. Suddenly one loses all interest in who will be champion.