19、The mature never ask the past, the wise never ask the present——The open-minded never ask the future、成熟的人不问过去，聪明的人不问现在。豁达的人不问未来。

 

20、We all have our places in the world——天生我才必有用。

 

21、Even if you get no applause, you should accept a curtain call gracefully and appreciate your own efforts——即使没有人为你鼓掌，也要优雅的谢幕，感谢自己的认真付出。