水至清则无鱼
when the water is too clear,there are no fish—one should not demand absolute purity
～，人至察则无徒。(《大戴礼记》)If a person is too critical,he has no friends.(Elder Dai’s of Ritul Record)
水至清则无鱼shuǐ zhì qīnɡ zé wú yú
至：极。水太清澈，鱼在此就不会有条件生存了。比喻人太精明不能容人，也用以表示对别人不能求全责备。one should not demand absolute purity, when the water is too clear there are no fish