有孺子歌曰：‘沧浪之水清兮，可以濯我缨；沧浪之水浊兮，可以濯我足。’
There was a boy singing ," When the water of the Cang Lang is clear , It does to wash the strings of my cap ; When the water of the Cang Lang is muddy , It does to wash my feet . "
孺子歌