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。

电锯不会毁掉森林，短视思维才会。

Customer needs always come first; everything else is secondary.

I think the best thing you can do is to be true to yourself and to be honest with yourself.

The world of the happy is quite another than that of the unhappy.