对一切数据进行冗余备份，至少要有一个物理硬盘备份和一个云端备份。每个备份都要多于一个。想想要是你弄丢了所有数据、照片、笔记，得花多少钱来找回它们？与遗憾相比，备份很便宜。

"The best stories are those that challenge us to see the world differently."

追求数学真理就是追求美、优雅和简洁。

Anything you say before the word “but” does not count.

我想展示即使在最黑暗的地方也能找到人性。

All interest in disease and death is only another expression of interest in life.