everything, perhaps even his life. He is paid a dollar a day, and no one says, no one believes, that you could make a better soldier out of him by any form of economic incentive. That motive disappears out of his human nature. The contractor sacrifices very little, is paid a handsome profit over costs, and few say or believe that he would produce the munitions if there were no economic incentive. That may be unfair to him. The point is that the accepted patriotic code assumes one kind of human nature, the commercial code another. And the codes are probably founded on true expectations to this extent, that when a man adopts a certain code he tends to exhibit the kind of human nature which the code demands.
That is one reason why it is so dangerous to generalize about human nature. A loving father can be a sour boss, an earnest municipal reformer, and a rapacious jingo abroad. His family life, his business career, his politics, and his foreign policy rest on totally different versions of what others are like and of how he should act. These versions differ by codes in the same person, the codes differ somewhat among persons in the same social set, differ widely as between social sets, and between two nations, or two colors, may differ to the point where there is no common assumption whatever. That is why people professing the same stock of religious beliefs can go to war. The element of their belief which determines conduct is that view of the facts which they assume.
That is where codes enter so subtly and so pervasively into the making of public opinion. The orthodox theory holds that a public opinion constitutes a moral judgment on a group of facts. The theory I am suggesting is that, in the present state of education, a public opinion is primarily a moralized and codified version of the facts. I am arguing that the pattern of stereotypes at the center of our codes largely determines what group of facts we shall see, and in what light we shall see them. That is why, with the best will in the world, the news policy of a journal tends to support its editorial policy; why a capitalist sees one set of facts,