生活就是痛苦，生存则是在痛苦中找到一些意义。

The only thing that makes life possible is permanent, intolerable uncertainty; not knowing what comes next.

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

量子算法以经典算法无法做到的方式揭示了量子力学的力量。