在数学中，提出问题的艺术必须比解决问题更有价值。

死亡很可能是唯一的、最好的生命创造。它是生命的促变者。它送走老一代，给新一代开出道路。

The only thing that can stop you is you.

On the path of science, there are no smooth roads to take; only those who are not afraid of hard work and climb the steep mountain paths have the hope of reaching the glorious summit.

你给予的越多，得到的回报就越多。