You don’t have to pee on an electric fence to learn not to do it.

In this trifling affair， that misunderstandings and neglect occasion more mischief in the world than even malice and wickedness. At all events， the two latter are of less frequent occurrence.

拉涅利批评狂人的执教方式，被穆里尼奥回怼。

I don't believe in anything, and that's the only thing I believe in.