行为主义者问：为什么我们不把可观察的东西作为心理学的真正领域？

我喊出我野性的狂叫，站在世界屋脊上。

The only real failure is not trying.

Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be. Many things prevent knowledge including the obscurity of the subject and the brevity of human life.

Games are not just entertainment; they can also be a form of artistic expression.

我会用city而永不用Metropolis来表达城市，用cop而永不用policeman来表达警察，既然三丶四个字母可以赚七个美分，为什么要用长而赘的字呢？

The beauty of mathematics is that it allows us to see the world in a way that is both precise and profound, revealing the underlying order that governs all things.