expression, godan verb (-ru)
birds of a feather flock together
Proverb meaning people of similar character or interests naturally gather together. Often used to comment on groups or friendships.
彼らはすぐに仲良くなった。類をもって集まるというが、本当だね。
They quickly became friends. They say birds of a feather flock together, and it's true.
Standard kanji form for this proverb.
Variant using the kanji 以て for もって; slightly more formal or literary.
A similar proverb with the same meaning; 類をもって集まる is slightly more formal or literary.
A Japanese proverb derived from classical Chinese. The exact origin is uncertain, but it reflects the idea that like attracts like.