Train people well enough so they can leave, treat them well enough so they don't want to.

每个故事都是一次旅程，每次旅程都是一个故事。

天下的根本在于国家，国家的根本在于家庭，家庭的根本在于个人。

The price of inaction is far greater than the cost of making a mistake.

"I want to take my fans on a journey."

PAC学习框架提供了一种正式的方法来分析学习算法的效率和有效性。