质量不是保证；它是一种承诺。

最有价值的碳氢化合物分子是我们不需要燃烧的那种。

用心栽花、施肥、灌溉，花却总是不开；无意间将柳条插在地上，却长成了郁郁葱葱的柳树。

"Books so special and rare and yours that advertising your affection feels like a betrayal."

The generic city is the city liberated from the captivity of center, from the straitjacket of identity.

最终，我们记住的不是敌人的话语，而是朋友的沉默。

The conjectures of the Langlands program are not merely problems to be solved but a vision of how mathematics should be.

不耽误农业生产的季节，粮食就会吃不完；密网不下到池塘里，鱼鳖就会吃不完；按一定的季节入山伐木，木材就会用不完。