世界上最有价值的资源不再是石油，而是数据。

挑战不仅仅是给人们钱，而是要理解他们在约束下如何做决策。

The human mind is so complex and things are so tangled up with each other that, to explain a blade of grass, one would have to make a diagram of the universe.

我不害怕犯错。我害怕不去尝试。

The trade-off between bias and variance is a fundamental concept in machine learning.