《庄子·外篇·天运》
老聃说： 飞扬的糠屑进入眼睛，也会颠倒天地四方，蚊虻之类的小虫叮咬皮肤，就会让人通晓都难以入睡。
老聃曰： 夫播糠眯目，则天地四方易位矣；蚊虻囋肤，则通昔不寐矣。
Laozi said: Flying chaff entering the eyes will also turn the world upside down, and insects like mosquitoes biting the skin will make people too difficult to fall asleep.