If one has realised, he is that which alone is, and which alone has always been. He cannot describe that state. He can only be that.

He who can, does. He who cannot, teaches.

数学的美在于它能够以最优雅和简洁的方式描述宇宙。

在股票中赚钱的关键是不要被吓跑。

材料设计的微小改变可以大幅减少环境影响。