为何一个人建了一堵墙，另一个人马上就想知道墙的另一边是什么？
Why is it that when one man builds a wall, the next man immediately needs to know what's on the other side?
Success is falling nine times and getting up ten.
The right of a nation to kill a tyrant in case of necessity can never be doubted.
The greatest risk is standing still while the world changes around us.
