英语关于“过去的痛苦就是快乐”这句话演讲.

happines derives from the past
good moring,ladies and gentlemen:
Today I am really very happy to stand here to tell you something about my understanding of happiness.May be you wouldn't say yesterday was a happy day,because you had a misunderstanding with your friend.But were't there any expeience get from it?It is nodoubt that now you know something from it.Sucess is the mother of failure.and only when you experience the pain can you know what is true happy.thank you