All who joy would win must share it. Happiness was born a twin.
想要获得快乐就必须分享它，幸福天生就是双胞胎
Never be afraid of the moments--thus sings the voice of the everlasting。
要理解递归，首先必须理解递归。
If we treat the ocean as a limitless resource, we will soon find it is anything but.
力的统一不仅是数学上的梦想，更是物理上的必然。