真正的喜悦精神、崇高感、超越人类的感觉，这是最高卓越的试金石，在数学中肯定能找到，就像在诗歌中一样。
The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.
你在人际关系中投入的越多，它就越有价值。
Sustainability isn't a cost—it's an investment in our future.
成功不在于金钱，而在于对你所做事情的热爱。