船多不碍江

比喻虽然多，但互不妨碍。反义数量过多，则会相互干扰。老舍《牛天赐传》十九：“作买卖的大家拼命的争赛，谁也不再信船多不碍江这句话。”

船多不碍江船多不碍路chuán duō bù ài jiāng

it does no harm to the river when there are many boats sailing in it; the boats,though numerous,do not hinder the navigation
❍ 你做你的生意，我做我的生意，～嘛。You do your business and I do mine. After all it does no harm to the river when there are many boats sailing in it.
❍ 自古～，若他家有大娘子，我情愿让她做姐姐，奴做妹子。(《金瓶梅》七) Since ancient times,people have said that when there are many boats they do no harm to the sailing. If he has got a wife,I would rather let her be my sister and I’ll be her younger sister.