The exploration of oneself is usually also an exploration of the world at large, of other writers, a process of comparison with oneself with others, … - Colin Wilson

This in turn suggests an answer to our question: what happened between the birth of De Sade and the birth of Krafft-Ebbing? The rise of the novel taught Europe to use its imagination. And when imagination was applied to sex, the result was the rise of pornography -- and of "sexual perversion."

We might liken the 'two selves' to Laurel and Hardy. Ollie is the objective mind, 'you'. Stan is the subjective mind, the 'hidden you'. But Stan happens to be in control of your energy supply. So if you wake up feeling low and discouraged, you (Ollie) tend to transmit your depression to Stan, who fails to send you energy, which makes you feel lower than ever. This vicious circle is the real cause of most mental illness.

Maslow's psychology, firmly based upon Freud and Watson, simply points out that the optimistic side of the picture has been overlooked; the deterministic laws of our 'lower nature' hold sway in their won field; but there are other laws. Man's freedom is a reality -- a reality that makes a difference to his physical, as well as his mental health. When Frankl's prisoners ceased to believe in the possibility of freedom, they grew sick and died. On the other hand, when they saw that Dachau had no chimney, standing out all night in the rain seemed no great hardship; they laughed and joked. The conclusion needs to be stated in letters ten feet high. In order to realise his possibilities, man must believe in an open future; he must have a vision of something worth doing. And this will not be possible until all the determinism and pessimism that we have inherited from the 19th century -- and which has infected every department of our culture, from poetry to atomic physics -- has been dismissed as fallacious and illogical. Twentieth century science, philosophy, politics, literature -- even music -- has been constructed upon a weltanschauung that leaves half of human nature out of account.