I must, however, reaffirm my opinion that sexual relationships, whether within marriage or outside of it, whether legal or free, can never safely be unregulated, and will always be a difficult experiment. And experience has forced on me the knowledge that the most passionate union is often the one most likely to end in disaster. For Buckle is not far from right when he says we accumulate knowledge, but do not progress in morals, which depend on the unaltered heart of man. Some characters are manifestly and essentially unfaithful, self-seeking, and regardless of the happiness of others in love and in all the affairs of life. Others again act unfaithfully through weakness or haste, or through the misfortune of circumstances. The mistake with many of these people is that they ever bind themselves in permanent unions. We should not condemn or deal harshly with them, for by so doing we drive them to undertake obligations which they do not, because they cannot, fulfil. In my opinion, it is foolishness to pretend that for the whole of sexual conduct there can ever be one fixed rule. We shall have more morality, not less, if we accept this. It is for this reason that I am altogether persuaded of the need of much greater facilities of divorce than exist at present: divorce on the ground of mutual consent, and based on inability through any cause to maintain true partnership in marriage. There are some men and also women unsuited for marriage and quite undesirable as life-partners; they are not, however, undesirable because of the legal bond, but because of certain qualities which as individuals they possess. And this wider facility of divorce would do very much to lessen individual hardships, and moreover it would cleanse, in a way not sufficiently recognised, the immorality which is present in many unions. Marriage, with its fixed duties and the restrictions it does impose, in particular, upon the woman, will always appear to some a bondage from which they will seek the quickest way of escape. If no honourable way is allowed to them, they will take a dishonourable course. This may be deplored, it cannot (at any rate under existing conditions of character and public opinion) be helped, and nothing but evil can follow by pretending it is not so. Thus we find that the difficulty of divorce is the strongest factor that brings disgrace and immorality into marriage.