【原文】夫善用本者，若以身济于大海，观风之所起。天下高则高，天下下则下。天下高我下，则财利税于天下矣.《地数》

【汉解】善于治国的人，就象大海行船一样，观察风势的起源，天下各国粮价高我们就高，粮价低我们就低。如果天下各国粮价高而我们独低，我们的财利就将被天下各国捞取去了。

【英译】Those who are skilled in utilizing their country’s resources act as if they were sailing a boat across the ocean and watch for the source of the wind. If prices in the rest of the empire are high, they raise theirs; if they are low, they lower theirs. If the rest of the empire maintains high prices while ours are kept low, those people will strip away our resources and benefits.