When a child asks an endless string of “why？” questions， the smartest reply is， “I don’t know， what do you think？”

【释义】快乐不在于外在环境，而在于自己的内心。

The strength of our industry lies in the people who dedicate their lives to it.

Quality means doing it right when no one is looking.

条件作用原理同样适用于所有物种。