“I'll tell you something about true love. There's no science to it. It's as natural as the sky.”

“The good thing about science is that it's true whether or not you believe in it.”

“I'll think about something else. I'll just sit quietly. If I could sit still. If I could sit still, maybe I could read. Oh, all the books are about people who love each other, truly and sweetly. What do they want to write about that for? Don't they know it isn't true? Don't they know it's a lie, it's a God-damned lie? What do they have to tell about that for, when they know how it hurts?”

“And why should I do such a thing- tell you something that can only dismay you? Well, that is the nature of love: it is brutal in its demands.”

“Thus is the nature of love: that you must use it! A love unused is not love! If it is something that sits on the shelf that you don't know what to do with, it is not true to the nature of love! Use love!”

“One thing you'll learn as you get older, Simon, is that when people tell you something unpleasant about themselves, it's usually true.”