Robert Watson-Watt

The three most effective incentives to human action may be. . . classified as creed, greed and dread. . . . In examining the scientist it is perhaps worth while to examine how far he is moved by these three incentives. I think that, rather peculiarly and rather exceptionally, he is very little moved by dread. . . . He is in fact essentially a person who has been taught he must be fearless in his dealing with facts.