刚强纯洁的高尚人品，要在烈火般艰苦的斗争中锤炼；惊天动地的丰功伟业，必须在薄冰般险恶的环境里前进。

战略的本质是选择不去做什么。

A company's culture is defined by the actions of its leaders, not just their words.

Writing is a way to confront the things that we are afraid to confront in real life.

历史研究不仅关乎过去，也关乎理解现在和预见未来。