D'Artagnan (Gabriel Byrne): "You cannot ask me to betray my king. I have sworn an an oath."
Athos: "When a king is dishonorable, you are removed from your oath of honor."
D'Artagnan: "An oath is an oath precisely because it cannot be removed."
Athos: "Why do yo follow him D'Artagnan? Why? What we faught for is greater than king or rank or reward. What do yo fight for now?"
D'Artagnan: "I fight for the beloef that every man can be better, even Louis."