Chapter 32, Part 8 - Chuang Tzu

A man of Sung, one Ts'ao Shang, was sent by the king of Sung as envoy to the state of Ch'in. On his departure, he was assigned no more than four or five carriages, but the king of Ch'in, greatly taken with him, bestowed on him an additional hundred carriages.

When he returned to Sung, he went to see Chuang Tzu and said, "Living in poor alleyways and cramped lanes, skimping, starving, weaving one's own sandals, with withered neck and sallow face - that sort of thing I'm no good at. But winning instant recognition from the ruler of a state of ten thousand chariots and returning with a hundred of them in one's retinue - that's where I excel!"

Chuang Tzu said, "When the king of Ch'in falls ill, he calls for his doctors. The doctor who lances a boil or drains an abscess receives one carriage in payment, but the one who licks his piles for him gets five carriages. The lower down the area to be treated, the larger the number of carriages. From the large number of carriages you've got, I take it you must have been treating his piles. Get out!"
~ Burton Watson translation via Terebess Asia Online ~

Go here to read the introductory post to the chapters of the Book of Chuang Tzu.