“物以类聚，人以群分”英文怎么说？

物以类聚:若要有birds的话是:
Birds of a feather folock together
另外也有这个说法:
Things of one kind come together

Birds of a feather flock together. 物以类聚，人以群分。

Birds of a feather flock together.

Things of a kind come together. People of a mind fall into the same group.

http://kateyourgoodmate.spaces.live.com/blog/cns!933FE39CF378881D!198.entry

Things of a kind come together; people of a kind fall into the same group.