Mathematics is a way of thinking, not just a collection of facts.
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them.
The best way to predict the future is to create it.
小说不仅仅是一个故事;它是一面反映人类存在复杂性的镜子。
每种心理状态都有其存在的目的;要理解它,我们必须询问它在更广泛的行为系统中发挥什么功能。