把书中的办法都试一遍，其实行得通的寥寥无几。

Do you know why?

Because the times have changed - the world has changed and the cultures around the world have changed.

Think about taming wild horses - study the techniques of the horse whisperer.

I recently saw an old movie - Mrs. Miracle - she used great techniques, and although not explained, if you watch carefully, you might learn something.