If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
你的一举一动都如暴风雨般让我刻骨铭心?
宇宙不仅比我们想象的更奇怪,它比我们能想象的还要奇怪。
The arithmetic of elliptic curves is a microcosm of the deeper structures in number theory.