所以说百工干事，都有法规可以衡量。现在大道治理天下，其次治理大国，却没有法度来衡量，这就是还不如百工聪明了。 

Words are wise men's counters, they do but reckon by them; but they are the money of fools.

The writer's secret is not inspiration—for it is never clear where it comes from—but stubbornness, endurance.

Agricultural technology is not lofty theory, but must be truly implemented in the fields.

你不能找到心灵的尽头，即使走遍所有的道路。