how do you feel?

"Depression is a choice."

"What the fuck are you talking about? A choice? You think we evolved serotonergic systems due to free will? Fucking ridiculous."

"Sure, but yesterday you were fine."

"Yeah."

"And today you're in the shits."

"Yeah."

"And what has changed?"

"Nothing."

"Nothing at all. She left you just as much yesterday as she did today. But today you're depressed."

"Yeah, but I didn't choose to feel like shit today."

"And I think you did."