一切都在流动,一切都在变化,没有永恒不变的东西。
Everything flows, everything changes, nothing remains.
出自《论语·先进篇第十一》。子路问孔子说:“我大胆的请教您,死是怎么回事呢?”孔子回答说:“还不知道生是怎么一回事,怎么能够知道死亡呢?”
Every mathematical problem has a solution; you just need to find the right perspective.