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。 

The principles of learning are universal across species.

The measure of intelligence is the ability to change.

最重要的是保持适应能力。

你不是因为想说点什么才写作，而是因为有些话非说不可才写作。

Le malheur qui nous frappe est toujours le plus grand.

The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.