The only true index of genuine love lies, therefore, in the sacrifice of one’s own happiness for another’s sake. Pure love is always ready to lose its own life in an effort to save another’s. The sentimental lover is, indeed, not less overjoyed to have his affection returned; but if it is not reciprocated, his love is, unlike sensual love that turns into resentment, none the less affectionate. He never slakes his thirst with the blood of his beloved, even if he is rejected. His constant solicitude is how he can make the beloved happy and save the adored person from grief, at whatever cost to his own comfort. He feels the joys and sorrows of his beloved, as if they were his own. He has completely surrendered himself and his own peculiarity to the other and has, in a certain respect, died as something specific and individual.[AG] True love, therefore, was slow in coming and is a child of a higher civilization, and is, even then, known only to the cultured. Only when humanity has reached that state of civilization when men and women show not only their respective physical but also mental secondary characters, then admiration and respect enter into the relation of the sexes. Love becomes more and more fastidious and more regardful of intellectual worth and moral beauty, and sentimental love is made possible. For true love cannot exist without respect, and genuine affection is chiefly evoked by intellectual, emotional and moral qualities. The secondary mental characters in the man are strength, hardiness, robustness, courage, aggressiveness, activity, creativeness, stern justice, gallantry, generosity, manly will, manly grace, tenderness, and intelligence. The feminine qualities are gentleness, kindness, patience, tenderness, benevolence, sympathy, self-sacrifice, meekness, sensitiveness, emotionality, modesty, demureness, coyness, and domesticity. The highest phases of genuine love are possible only where the secondary psychic qualities are highly developed. Such persons do not care to possess in the low, coarse way that characterizes sensual love. They are content to love and be silent, to worship even at a distance. Love, says Horowicz, growing up as a mighty passion from the substratum of sexual life has, under the repressing influences of habits and customs, taken on an entirely new, supersensual, ethereal character, so that to the true lover every thought of naturalia seems indelicate and improper. True love is, therefore, only possible between refined and cultured people, between a man capable of adoration, sympathy and affection and a woman equipped with mental and moral charms. In true love the woman must show the same traits as in her maternal capacity. She has to be a real mother to the man she loves. The man starts life at a woman’s knees, and it is to a woman’s knees that he returns when he marries. Woe to him and her, if the second woman’s love is less selfish and sacrificing than that of the first.