I’m telling you,” Isaac continued, “Augustus Waters talked so much that he’d interrupt you at his own funeral. And he was pretentious: Sweet Jesus Christ, that kid never took a piss without pondering the abundant metaphorical resonances of human waste production. And he was vain: I do not believe I have ever met a more physically attractive person who was more acutely aware of his own physical attractiveness. 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. And then, having made my rhetorical point, I will put my robot eyes on, because I mean, with robot eyes you can probably see through girls’ shirts and stuff. Augustus, my friend, Godspeed.

John Green, The Fault In Our Stars