Lost Season 4 Episode 13

Jack: What did you wanna talk to me about, John?
Locke: I want you to reconsider leaving the island, Jack. I would like you to stay.
Jack: You'd like me to stay.
Locke: Yeah, that's right.
Jack: You threw a knife into the back of an unarmed woman. You led half of our people across the island and got most of them killed.
Locke: Well, Jack, you put a gun to my head and you pulled the trigger. I was hoping we could let bygones be bygones.
Jack: Well, I' tell you what. You stay here in your little greenhouse, but the rest of us are going home.
Locke: But you're not supposed to go home.
Jack: And what am I supposed to do? Oh, I think I remember. What was it that you said on the way out to the hatch--that crashing here was our destiny?
Locke: You know, Jack. You know that you're here for a reason. You know it. And if you leave this place, that knowledge is gonna eat you alive from the inside out... until you decide to come back.