PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。

In the age of show business， serious public discourse becomes entertainment.

我越是研究染色体，就越意识到它们非凡的行为。

Productive thinking is characterized by the sudden appearance of the solution as an insight.

The most valuable resource in any organization is its people.

The key to successful investing is to have a clear understanding of risk.

预测未来的最好方法就是创造未来。

天才和愚蠢之间的区别就是天才有它的限制。