The rise of China and other authoritarian states challenges the idea that liberal democracy is the only viable political system.

"The best way to learn is to do it, to make mistakes, and to learn from them."

世界称之为不道德的书，是那些展示世界自身羞耻的书。

追求知识是一生的旅程。

我不把任何事视为理所当然，我通过努力获得一切成就。

Productivity metrics that ignore environmental impact are accounting tricks, not real progress.

There is only one good, which is knowledge, and one evil, which is ignorance.