誰知舊日情，斯人知太深。綿綿長懷恨，盡在不言中。
在數(shù)學(xué)中，最簡單的問題往往能引出最深刻的見解。
時間的流逝既是祝福也是詛咒。
I am a cage, in search of a bird.
The advance of technology is based on making it fit in so that you don't really even notice it, so it's part of everyday life.