Summary:  also stresses the importance of eugenics in marriage, advising men to choose wives of good family, lineage, virtuous character, and physical attractiveness to ensure the best offspring. He also advocates monogamy, condemning polygamy as detrimental to society and undermining the family structure. Marriage, according to Manu, is a sacred union that should be entered into with purity, respect, and commitment, with each partner fulfilling their respective roles and responsibilities to maintain harmony and social order.