“Darwin’s starting point, ” they write, “was the abolitionist belief in bloodkinship, a ‘common descent’ ” of all human beings.
他们写到：“达尔文的出发点就是一个废奴主义者的信仰：人类起源于同一祖先。”
2
Kinship consisted of blood kin and affinal kin and it established and extended chiefly through marriage.
亲属关系包括血亲、姻亲，但主要是通过婚姻建立和扩大的。
3
This weakening of the bond of blood in the gens followed from the degeneration of the organs of kinship also in the tribe and in the entire people as a result of their conquests.