数学不是一项观赏性运动；要理解它，必须积极参与其中。

The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary.

可持续发展需要全产业链共同努力。

艺术不是反映世界的镜子，而是塑造世界的锤子。

最好的领导者是那些能够激发行动的人。

Good market design aligns individual incentives with social efficiency.