成功不是终点,失败也并非致命,重要的是继续前进的勇气。
The key to performance is elegance, not battalions of special cases.
There is no despair so absolute as that which comes with the first moments of our first great sorrow, when we have not yet known what it is to have suffered and be healed, to have despaired and have recovered.
Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.