Let us not rail about justice as long as we have arms and the freedom to use them. — Duke Leto Atreides

My Take – This reminds me of something I once heard someone say about the Romans:  The war is not over until one side considers itself beaten.  Duke Leto was telling his men that injustice could not truly be perpetrated upon them so long as they had the means to resist it and the will to do so.  It echoes a lot of the things our founding fathers said about how a free nation, armed and ready to defend itself, could never be truly subdued.  When a free people allow themselves to be disarmed and lose the will to fight, only then can they be considered conquered.