The history of life is written in the language of chemistry.
学习不仅仅是记忆的问题;它是创造的问题。
Science is the knowledge of consequences, and dependence of one fact upon another.
I write to make sense of the world.
如果一个人只希望幸福,这很容易实现;但我们希望比别人更幸福,这总是困难的,因为我们相信别人比他们实际更幸福。