The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
创新不仅仅是创造新产品,而是重新构想我们如何生活和工作。
The more we learn about black holes, the more we realize how much we still don’t know.