我不记得活着的理由了，而我记得的时候，那个理由又没有说服力。

The most powerful weapon you have is your voice, use it to inspire, to heal, and to change the world.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

永生是个十分长的时光，个性是对于死亡来说。

数学研究是一次进入未知的旅程，每一次发现都为新的谜题打开了大门。

The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life. You can turn over a new leaf every hour if you choose.