Birds of a feather flock together.
物以类聚。
People with similar backgrounds, personalities, and interests usually find it easier to become friends with each other. They will, therefore, get together. In the same way, birds usually only fly together with other birds of the same kind. Thus we have the proverb, “Birds of a feather flock together.”
有相同背景、个性及兴趣的人通常发觉彼此比较容易成为朋友。因此他们会聚在一起。同样地,鸟通常只和其它同类的鸟一起飞翔。俗云:“物以类聚。”