Though Carlisle allows Kate her declaration, he doesn't seem to believe it himself; he resigns himself to staring at the memorials once more. He hopes those who see his name among them remember him recall him with color in his hair. Cisth, he can hardly remember what it used to look like.

"If you say so, Kate."

No argument, no insisting it's a foolish endeavor -- just quiet acceptance. He can give her that much.