悲伤是私人的事。它需要多久就会持续多久。
Grief is a private thing. It takes as long as it takes.
生活很艰难,亲爱的,但你也很坚强。
L-函数的研究是探索数字隐藏结构的窗口。
In a world of constant change, adaptability is the key to survival and growth.