Joe West: What the hell is wrong with you two? Since when do we let people die?
Iris West-Allen: Dad, you know who Thawne is.
Joe West: Yeah, I do. And that man came to you for help, which means you're obligated to try and save him.
Barry Allen: Joe, he killed you. No, I know you don't remember, but I do. If we don't let this happen now, our family will never be safe.
Joe West: You don't think I want to see him dead either? 'Cause I do. If I learned one thing being a cop, it's that you can't just protect the people you think are good. You have to protect everyone. That's what heroes do.
Barry Allen: I know that.
Joe West: Do you? A hero is not just in the name, Barry, or in a red suit. It's the choices we make that decide who and what we become. You know that.
Iris West-Allen: Dad, we don't have a choice. Thawne isn't giving us one.
Joe West: You always have a choice! Now, did either one of you even try to think of a way to save him? You already found one.
Barry Allen: Yeah. We could save him if we take his speed away, permanently.
Iris West-Allen: Just like Jefferson Pierce did to you.
Barry Allen: Listen, Joe, wait...
Joe West: Hey. Uh-uh. This decision is for the two of you. But I can tell you one thing: if you let Thawne die, you don't have to worry about destroying our family.