"Every form of fecundity is loathsome, and no one who is honest with himself feels bound to provide for the continuity of the human race. And what we do not realise to be a duty, is not a duty. On the contrary, it is immoral to procreate a human being for any secondary reason, to bring a being into the limitations of humanity, the conditions made for him by his parentage; the fundamental question why the possible freedom and spontaneity of a human being is limited is that he was begotten in such a limited fashion. That the human race should persist is of no interest whatsoever to reason; he who would perpetuate humanity would perpetuate the problem and the guilt; the only problem and the only guilt."