《吕氏春秋·览·恃君览》
所以，水闭结就会变污浊，树闭结就会生蛀虫，草闭结就会枯死。
故水郁则为污，树郁则为蠹，草郁则为菑。
Therefore, when water is stagnant, it becomes vile; when trees are stagnant, they are attacked by borers; when grass is stagnant, it withers and dies.