Rush: Well, you're the wrong man for the job, Colonel. I'm sorry to have to be the one to say it but I think you know it's true.
Young: Do I?
Rush: You don't believe in the mission. You resigned your position as SG leader because you didn't wanna make the hard decisions, the life and death decisions. Well, that makes you a liability. I'm not proud of what I did, but I did it for the benefit of everyone on board.
Young: The end justifies the means.
Rush: Yeah, something like that.