The greatest glory in living lies not in never falling, but in rising every time we fall.

历史学家的任务是让死者重生。

The mining industry has a responsibility to leave communities better than we found them.

在数学研究中，坚持是关键；许多伟大的成果来自于一遍又一遍地从不同角度看待同一个问题。

跨越万里山川，拨开云雾前进；经历百次寒暑，踏着霜雨前行。