Amara: You want to evaporate every kernel of existence because the Winchesters won't do what you say.
Chuck: It's not about that. It's about everywhere I look, I'm reminded of my failures. Like why did I go with carbon-based life? Why not silicon? Or atrium? Zeroing out, starting fresh. That's what I need.
Amara: None of this was a failure. Not a tree, not a human.
Chuck: Humans! Aah. Humans are the worst! Lame, disappointing. They ruin everything they touch! And they're just so boring. I'm over them.