[Carlisle nods slightly. He might as well be boring a hole in the wall for how intensely he's staring at it. His voice is clipped as he clearly takes umbrage with one point in particular.]

I did not attempt to heal him. I did. I merely did not finish, but it is no easy task to rebuild the elements and organs of the body.

[Which isn't the point and he knows it, but he's clinging onto what little bit of his former self he can at the moment. It beats seeing himself as an entirely contemptible creature better put down than tolerated.]