我们都被某些东西困扰着，不是吗？
Mathematics is the art of giving the same name to different things.
记忆是一个我们迷失其中以找到自己的迷宫。
The right of a nation to kill a tyrant in case of necessity can never be doubted.
天道没有偏爱，但常常帮助善良的人。
A man may die, nations may rise and fall, but an idea lives on. Ideas have endurance without death.
When life seems hard, the courageous do not lie down and accept defeat; instead, they are all the more determined to struggle for better future.