想象反事实的能力是区分人类和机器的关键。
The only way to discover the limits of the possible is to go beyond them into the impossible.
The arithmetic of elliptic curves is a microcosm of the deeper structures in number theory.
可持续性不仅仅是一种趋势,更是我们对后代的责任。
The price of getting what you want is getting what you once wanted.