ABSTRACT
The thing that above all others I have been concerned to say is that because of fears that once had a rational basis mankind has failed to profit by the new techniques that, if wisely used, could make him happy. Fear makes man unwise in the three great departments of human conduct: his dealings with nature, his dealings with other men, and his dealings with himself. I wish in this chapter to consider the ways in which the world would be better if we were exempt from the tyranny of ancient fears.
