Baldwin: Vampires with blood rage are never in control, not absolutely.
Matthew: If I was out of control, Baldwin, you'd already be dead. I have never and never will bring shame upon the de Clermont family and neither will our children.
Diana: What if I gave you my word that any member of our scion with blood rage can be brought under control. Would you then recognize Matthew as the head of his scion?
Baldwin: You can't make that promise.
Diana: I can, I swear, that if any of them act on their blood rage, I will spellbind them.
Baldwin: And if it fails?
Diana: Then our scion has failed, and we will submit to The Congregation.