过去是一个陌生的国度;那里的人们行事方式不同。
The past is a foreign country; they do things differently there.
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
数据驱动的研究可以挑战长期持有的经济假设。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.