“There are two types of understanding in this world. There's the kind that comes from the reading and the hearing, and it doesn't penetrate the skin. It is surface knowledge, like a soft blanket that can be placed over the shoulders. And then there's the understanding that comes from doing. That kind of understanding is not soft. It is water that soaks into the rocks and earth, and makes the seeds grow. It is messy, and painful, and impossible to hold.”