[He would hardly disagree with her, but her insistence on pretending that war weapons are superior sours that brief accord.] Spoken like a true princess -- with all the privilege and short-sightedness that goes along with that.
[Like it or not, the geass was a human power, shaped by humans, passed on by humans, used and abused by humans. It was easy for Cornelia to make assumptions like "alien power no one understands", because she didn't know anything about it; but it had been engineered and cultivated by humans for longer than she could guess. The KMF was a mechanical monstrosity that only a small percentage could claim to fully understand, and one that Cornelia might not ever have lost control over -- since no one would dare put Her Highness in any machine that hadn't been rigorously checked for errors. No faulty wires, no programming errors, no substandard parts for her custom-made Gloucester.
[Excuses. All excuses. And he could keep arguing with them all night if he could be bothered to entertain that attitude.]
If you want to whisper more militaristic jingo in my ear, I'm afraid I'm done hearing it, Cornelia. [he half-turns away] Don't bother, Suzaku. I think my sister may need assistance finding the door.