| 立つ鳥跡を濁さず | [たつとりあとをにごさず, tatsutoriatowonigosazu] (exp) (See 跡を濁す・あとをにごす) it is simply common courtesy to clean up after yourself; a bird does not foul the nest it is about to leave; on leaving a place one should see that all is in good order [Add to Longdo] |