As in the political sphere, the child is taught that he is free, a democrat, with a free will and a free mind, lives in a free country, makes his own decisions. At the same time he is a prisoner of the assumptions and dogmas of his time, which he does not question, because he has never been told they exist. By the time a young person has reached the age when he has to choose (we still take it for granted that a choice is inevitable) between the arts and the sciences, he often chooses the arts because he feels that here is humanity, freedom, choice. He does not know that he is already moulded by a system: he does not know that the choice itself is the result of a false dichotomy rooted in the heart of our culture. Those who do sense this, and who don't wish to subject themselves to further moulding, tend to leave, in a half-unconscious, instinctive attempt to find work where they won't be divided against themselves. With all our institutions, from the police force to academia, from medicine to politics, we give little attention to the people who leave—that process of elimination that goes on all the time and which excludes, very early, those likely to be original and reforming, leaving those attracted to a thing because that is what they are already like. A young policeman leaves the Force saying he doesn't like what he has to do. A young teacher leaves teaching, here idealism snubbed. This social mechanism goes almost unnoticed—yet it is as powerful as any in keeping our institutions rigid and oppressive.