成功的一天，你应该高兴。患难之日你要思考！In the day of prosperity be joyful，but in the day of adversity consider！逆境可以引出一个人的才能。他只是富裕环境中的潜伏者。
adversity has the effect of eliciting talents,which in prosperous circumstances would have lain dormant.往者不可谏，而来者犹可追。you can sit here mourning its departure,or you can prepare for the future.
当你需要知识，就像你在水底需要空气时，你准能得到它。when you want knowledge like you want air under water then you will get it.