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.

我不相信后悔，我相信从中吸取教训。

数学的进步不仅仅依靠个人的努力，而是通过几代人的集体工作。

Sustainable development is not a slogan but a concept that must be practiced. We must keep the land forever vibrant.

最好的交易是你最有信心的交易。