There are more things in heaven and earth, Horatio, Than are dreamt of in your philosophy

摘要

Just when you think you have a handle on the world, you realize you don't. A staggering 85 percent of the matter in the universe is made of we-know-not-what. We cannot see it. We cannot touch it. In the time it took to read this sentence, however, 500 million of it intangibly went through you and left each of your atoms undisturbed. We are living in a world of ghosts.