男性在选择长期配偶时注重女性的体貌和年轻特征,反映出其对与女性繁殖价值相关且可直接观察到的品质非常敏感。年轻貌美的妻子能使他们在长远的未来可能拥有基因优秀的后代,男性的基因在少数健康的子代身上得到延续,即“以质取胜”。而男性在选择短期性伙伴时偏爱那些拥有与生育力相关的特征的女性,而且希望在短期内与多名此类女性进行性接触,并避免严肃的承诺和较多的投资。通过这类情人所生的孩子,男性的基因就可能在短时间内获得传播,他们投入较小的成本而得到了大量的后代,即“以量取胜”。 Men's emphasis on the physical appearance and young characteristics of women when choosing long-term spouses reflects their sensitivity to the quality directly associated with the reproductive value of women. Beautiful young wives make it possible for them to have genetically superior offspring in the long run. Genes of men have continued in the handful of healthy offspring, “winning by quality.” Men, on the other hand, prefer women who have fertility-related traits when choosing short-term partners and want to have sexual contact with more than one such woman in the short term without serious commitments and more investment. With such children born of lovers, the genes of men may spread in a short period of time. They invest a small amount of money and get a large number of offspring, that is, “to win by quantity.”