“I imagine a line, a white line, painted on the sand and on the ocean, from me to you.”

“I wish my days could be washed away like the chalk lines of my days.”

“I read the first chapter of A Brief History of Time when Dad was still alive, and I got incredibly heavy boots about how relatively insignificant life is, and how compared to the universe and compared to time, it didn't even matter if I existed at all. When Dad was tucking me in that night and we were talking about the book, I asked if he could think of a solution to that problem. "Which problem?" "The problem of how relatively insignificant we are." He said, "Well, what would happen if a plane dropped you in the middle of the Sahara Desert and you picked up a single grain of sand with tweezers and moved it one millimeter?" I said, "I'd probably die of dehydration." He said, "I just mean right then, when you moved that single grain of sand. What would that mean?" I said, "I dunno, what?" He said, "Think about it." I thought about it. "I guess I would have moved one grain of sand." "Which would mean?" "Which would mean I moved a grain of sand?" "Which would mean you changed the Sahara." "So?" "So? So the Sahara is a vast desert. And it has existed for millions of years. And you changed it!" "That's true!" I said, sitting up. "I changed the Sahara!" "Which means?" he said. "What? Tell me." "Well I'm not talking about painting the Mona Lisa or curing cancer. I'm just talking about moving that one grain of sand one millimeter." "Yeah? If you hadn't done it, human history would have been one way..." "Uh-huh?" "But you did do it, so...?" I stood on the bed, pointing one of my fingers at the fake stars, and screamed: "I changed the course of human history!" "That's right." "I changed the universe!" "You did." "I'm God!" "You're an atheist." "I don't exist!" I fell back onto the bed, into his arms, and we cracked up together.”

“It is not a thing that you can imagine. It only is. After that, there can be no imagining.”

“An ocean could not explain the distance we have traveled.”

“This isn't animal experimentation, where you an imagine some proportionate good at the other end of the suffering. This is what we feel like eating. Tell me something: Why is taste, the crudest of our sense, exempted from the ethical rules that govern our other sense? If you stop and think about it, it's crazy. Why doesn't a horny person has as strong a claim to raping an animal as a hungry one does to killing and eating it?”

“A lot of the time I'd get that feeling like I was in the middle of a huge black ocean, or in deep space, but not in the fascinating way. It's just that everything was incredibly far away from me. It was worst at night. I started inventing things, and then I couldn't stop, like beavers, which I know about. People think they cut down trees so they can build dams, but in reality it's because their teeth never stop growing, and if they didn't constantly file them down by cutting through all of those trees, their teeth would start to grow into their own faces, which would kill them. That's how my brain was.”