" No, I’m talking about the aliens inside our own heads. The ones we made up, the ones we’ve been making up since we realized those glittering lights in the sky were suns like ours and probably had planets like ours spinning around them. You know, the aliens we imagine, the kind of aliens we’d like to attack us, human aliens. You’ve seen them a million times. They swoop down from the sky in their flying saucers to level New York and Tokyo and London, or they march across the countryside in huge machines that look like mechanical spiders, ray guns blasting away, and always, always, humanity sets aside its differences and bands together to defeat the alien horde. David slays Goliath, and everybody (except Goliath) goes home happy. What crap. "
― Rick Yancey , The 5th Wave (The 5th Wave, #1)