Whenever you read a cancer booklet or website or whatever, they always list depression among the side effects of cancer. But, in fact, depression is … - John Green

But, in fact, depression is not a side effect of cancer. Depression is a side effect of dying. (Cancer is also a side effect of dying. Almost everything is, really.)

That's the thing about pain," Augustus said, and then glanced back at me. "It demands to be felt.

"I'm in love with you," he said quietly.

"Augustus," I said.

"I am," he said. He was staring at me, and I could see the corners of his eyes crinkling. "I'm in love with you, and I'm not in the business of denying myself the simple pleasure of saying true things. I'm in love with you, and I know that love is just a shout into the void, and that oblivion is inevitable, and that we're all doomed and that there will come a day when all our labor has been returned to dust, and I know the sun will swallow the only earth we'll ever have, and I am in love with you."

But I will say this: When the scientists of the future show up at my house with robot eyes and they tell me to try them on, I will tell the scientists to screw off, because I do not want to see a world without him.