Human face is the universalpattern of human being's vision. The visual information that face represents has important effect and meaning in society intercourse.
人脸是人类视觉中最为普遍的模式，人的面部所表现的视觉信息在社会交流和交往中有着重要的作用和意义。
3
Even if a pattern of behaviour is almost universal, we can't know in advance if it is a law of nature we cannot change or simply a remnant of our primitive past that we can and should modify.