[Kaworu takes his hand away from Shinji's, and lays it at the other boy's cheek. Now their bodies mirror each other.]

You're living. No matter what happens, nothing will change the fact that you've truly existed. You've met other people, and other people have met you. You've learned things. You've done things. You've felt things. You've spent almost fifteen years becoming the person you are now. How is that not worthwhile?

[Naturally this is hypocritical, but his words aren't empty. Even in his exhaustion, his words are weighty with everything in his heart.]

There is nothing to me that has more worth than you.