The inclusion of the civilized Greeks in a treatise on Primitive Love will naturally cause surprise; but I cannot attribute a capacity for anything more than primitive sensual love to a nation which, in its prematrimonial customs, manifested none of the essential _altruistic_ traits of Romantic Love--sympathy, gallantry, self-sacrifice, affection, adoration, and purity. As a matter of course, the sensualism of a Greek or Roman is a much less coarse thing than an Australian's, which does not even include kisses or other caresses. While Greek love is not a sentiment, it may be sentimental, that is, an _affectation of sentiment_, differing from real sentiment as adulation does from adoration, as gallantry or the risking of life to secure favors do from genuine gallantry of the heart and self-sacrifice for the benefit of another. This important point which I here superadd to my theory, was overlooked by Benecke when he attributed a capacity for real love to the later Greeks of the Alexandrian period. IMPORTANCE OF LOVE One of the most important theses advanced in _Romantic Love and Personal Beauty_ (323, 424, etc.), was that love, far from being merely a passing episode in human life, is one of the most powerful agencies working for the improvement of the human race. During the reign of Natural Selection, before the birth of love, cripples, the insane, the incurably diseased, were cruelly neglected and allowed to perish. Christianity rose up against this cruelty, building hospitals and saving the infirm, who were thus enabled to survive, marry, and hand down their infirmities to future generations. As a mediator between these two agencies, love comes in; for Cupid, as I have said, "does not kill those who do not come up to his standard of health and beauty, but simply ignores and condemns them to a life of single-blessedness;" which in these days is not such a hardship as it used to be. This thought will be enlarged in the last chapter of the present volume, on the "Utility and Future of Love," which will indicate how the amorous sense is becoming more and more fastidious and beneficial. In the same chapter attention will be called, for the first time, to the three great strata in the evolution of parental love and morality. In the first, represented by savages, parents think chiefly of their own comfort, and children get the minimum of attention consistent with their preservation. In the second, which includes most of the modern Europeans and Americans, parents exercise care that their children shall make an advantageous marriage--that is a marriage which shall secure them wealth or comfort; but the frequency with which girls are married off to old, infirm, or unworthy men, shows how few parents as yet have a thought of their _grandchildren_. In the next stage of moral evolution, which we are now entering, the grandchildren's welfare also will be considered. In consequence of the persistent failure to consider the grandchildren,