数学不是一项观赏性运动。

There is no such thing as a quality problem. There are only problems of people not doing what they are supposed to do.

皮革鞣制的创新不仅仅关乎新化学品，而是重新思考材料的整个生命周期。

使我们无法自由和高尚地活着的最主要原因是对财富的迷恋。

我是个传奇，因为我努力工作。

我们的采石场不仅生产石头，更创造机会。