《淮南子·主术训》
由此看来，人的智能对事物的认知和驾御，是有限的；想以个人的有限智能光照四海、施震海内、保护四方，而不因循道术，只凭一己之能，那么他离走投无路的日子也就不远了。
由此观之，则人知之于物也，浅矣。而欲以遍照海内，存万方，不因道之数，而专己之能，则其穷不达矣。
From this point of view, people's intelligence regarding understanding and controlling things is limited. People trying to use their limited intelligence to oversee the four seas, make the world tremble, and protect the four directions without following the theory of Dao and only relying on their own abilities will soon reach a dead end.