Education: the path from cocky ignorance to miserable uncertainty.

无力感会腐化。绝对的无力感会绝对地腐化。

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

解释：拥有绝色美貌的人，完全能够祸乱人的情志。