So far I have ignored the immense importance of Sex in our lives and for the most part kept the discussion so generalized as to apply impartially to women and men. But now I have reached a point when this great boundary line between two halves of the world and the intense and intimate personal problems that play across it must be faced.

For not only must we bend our general activities and our intellectual life to the conception of a human synthesis, but out of our bodies and emotional possibilities we have to make the new world bodily and emotionally. To the test of that we have to bring all sorts of questions that agitate us to-day, the social and political equality and personal freedom of women, the differing code of honour for the sexes, the controls and limitations to set upon love and desire. If, for example, it is for the good of the species that a whole half of its individuals should be specialized and subordinated to the physical sexual life, as in certain phases of human development women have tended to be, then certainly we must do nothing to prevent that. We have set aside the conception of Justice as in any sense a countervailing idea to that of the synthetic process.

And it is well to remember that for the whole of sexual conduct there is quite conceivably no general simple rule. It is quite possible that, as Metchnikoff maintains in his extraordinarily illuminating “Nature of Man,” we are dealing with an irresolvable tangle of disharmonies. We have passions that do not insist upon their physiological end, desires that may be prematurely vivid in childhood, a fantastic curiosity, old needs of the ape but thinly overlaid by the acquisitions of the man, emotions that jar with physical impulses, inexplicable pains and diseases. And not only have we to remember that we are dealing with disharmonies that may at the very best be only patched together, but we are dealing with matters in which the element of idiosyncrasy is essential, insisting upon an incalculable flexibility in any rule we make, unless we are to take types and indeed whole classe............