The world is full of signs and wonders, but we are blind to them.

The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.

生活不是如何在风暴中生存，而是如何在雨中起舞。

用我的手写出我口中说的话，古人岂能束缚我的表达。

有机体有一个基本的趋势和努力——实现、维持和增强体验中的有机体。