I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

数学之美只会向更有耐心的追随者展现。

We don't even know how strong we are until we are forced to bring that hidden strength forward. In times of tragedy, of war, of necessity, people do amazing things. The human capacity for survival and renewal is awesome.

历史学家的任务是复活那些被时间湮没的声音。