思考是最困难的工作，这也是为什么很少有人这么做。
Thought is the most difficult task, which is why so few engage in it.
遵循天道，顺应地理，万物皆得其所。所以，抚慰他就安宁，折腾他就痛苦。尊崇他就可以为将领，贬斥则为俘虏。
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.