If you believe me pushing him to his limits--showing him that he is weak and lacks the power to kill me, that he will never surpass me if he holds onto that weakness--is the worst that I could do, then you know nothing of what I am capable of.
[Itachi's eyes turn back to his hand, looking at the pristine whiteness of the bandages. When he speaks again there is a detachment in his voice, as if he's speaking clinically.]
I've broken him before. Tore him down until he was a quivering mess on the ground with the blood of our parents close enough to taste. It drew out his potential.