Yanamino物以类聚，人以群分
wù yǐ lèi jù , rén yǐ qún fēnwuyileiju,renyiqunfen
- Similar things group together, similar people fit together (idiom); Birds of a feather flock together.
Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences