Glengarry Glen Ross
How we cite our quotes:
MOSS: Are you going to turn me in? (Pause.) George? Are you going to turn me in? (1.2.332-333)
That's it right there: Aaronow has a choice to make. He could stop the whole thing from going down, and in doing so could spare Levene from going down for the robbery. But Aaronow's a "good man," and he's not going to sell out one of his own.
MOSS: Well, to the law, you're an accessory. Before the fact.
AARONOW: I didn't ask to be. (1.2.360-362)
Sometimes it doesn't matter what you choose—you're in for it either way. All Aaronow chose to do was listen to Moss jabber on for a while, but unfortunately he's in it now whether he wanted to be or not. Ultimately, he doesn't cave, though. We don't see Aaronow's decision not to rob the place, but we know he's not the one who did it.
ROMA: Bad people go to hell? I don't think so. If you think that, act that way. (1.3.16-17)
Nothing gets people excited like a little talk about absolute morality, right? Basically, Roma believes (or at the very least he wants Lingk to believe) that men should make choices based on their own beliefs, not some cosmic version of what's right and wrong.