Mencius 3B.10

Kuang Zhang said to Mencius, 'Is not Chen Zhong a man of true self-denying purity? He was living in Wu Ling, and for three days was without food, till he could neither hear nor see. Over a well there grew a plum-tree, the fruit of which had been more than half eaten by worms. He crawled to it, and tried to eat some of the fruit, when, after swallowing three mouthfuls, he recovered his sight and hearing.'

Mencius replied, 'Among the scholars of Qi, I must regard Zhong as the thumb among the fingers. But still, where is the self-denying purity he pretends to? To carry out the principles which he holds, one must become an earthworm, for so only can it be done. Now, an earthworm eats the dry mould above, and drinks the yellow spring below. Was the house in which Zhong dwells built by a Bo Yi? or was it built by a robber like Zhi? Was the millet which he eats planted by a Bo Yi? or was it planted by a robber like Zhi? These are things which cannot be known.'

'But,' said Zhang, 'what does that matter? He himself weaves sandals of hemp, and his wife twists and dresses threads of hemp to sell or exchange them.'

Mencius rejoined, 'Zhong belongs to an ancient and noble family of Qi. His elder brother Dai received from Gai a revenue of 10,000 zhong, but he considered his brother's emolument to be unrighteous, and would not eat of it, and in the same way he considered his brother's house to be unrighteous, and would not dwell in it. Avoiding his brother and leaving his mother, he went and dwelt in Wu Ling. One day afterwards, he returned to their house, when it happened that some one sent his brother a present of a live goose. He, knitting his eyebrows, said, "What are you going to use that cackling thing for?" By-and-by his mother killed the goose, and gave him some of it to eat. Just then his brother came into the house, and said, "It is the flesh of that cackling thing," upon which he went out and vomited it. Thus, what his mother gave him he would not eat, but what his wife gives him he eats. He will not dwell in his brother's house, but he dwells in Wu Ling. How can he in such circumstances complete the style of life which he professes? With such principles as Zhong holds, a man must be an earthworm, and then he can carry them out.'