On the diversification of human features/"looks" (physiognomies)

"At one point of human evolution, man stood far closer to the group soul. Tacitus, one hundred years after Christ, gives us a picture of the different tribal groups. All members of a group then felt themselves belonging together, naturally with gradations, for everything in human evolution is in stages. All members of a group then looked alike. The markedly individual physiognomies are the sign of this freeing of the individual souls from the group soul. You still find today, among savages, more or less the same features. We must hold fast to this fact, that the physiognomy coming to expression is the proof that the individuality works formatively on the body." Steiner, R. (1907; GA97). Lecture: The Animal Soul (link). In the series of lectures: The Christian Mystery.