传记的挑战不在于发现事实 - 而在于发现事实背后的意义。
"The challenge of biography isn't finding the facts - it's finding the meaning behind them."
《致全国学农工商通电》(1924年4月12日)
说某事做不到的人不该去打扰正在做的人。
In computing, invariants are ephemeral.
Sustainability is not an option, it's a responsibility.