Proverb meaning that similar people or things naturally gather together (birds of a feather flock together).
趣味が同じ人たちが集まってサークルを作った。類をもって集まるという感じだ。
People with the same hobbies formed a club. It's like 'birds of a feather flock together.'
悪い仲間ばかりと付き合っていると、類をもって集まるになってしまうよ。
If you only hang out with bad company, it'll be a case of 'birds of a feather flock together.'
店には似た商品が並んでいる。類をもって集まるのだろう。
Similar products are lined up in the shop. It's probably because like attracts like.