1. Civilisation is necessarily based on the repression of some inclinations and the expression of others. The crucial question is always: which inclinations ought to be allowed expression and in what ways, and which should be repressed, or reshaped and rechannelled? A short answer to this question is to say those deemed desirable by any one society would be allowed expression, while those deemed undesirable are to be repressed, or if not repressed, at least redirected so that they find expression in some other more desirable or acceptable form.