thinking

Few people think more than two or three times a year; I have made an international reputation for myself by thinking once or twice a week.

It is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be ... This, in turn, means that our statesmen, our businessmen, our everyman must take on a science fictional way of thinking.

Civilization advances by extending the number of important operations which we can perform without thinking of them.