Ben 10: Ultimate Alien, Season 1

Professor Paradox:
[to Young Ben] You'll think it was a dream, but one day, you will remember it dimly and trust Kevin when you shouldn't, and he'll respond to that trust and help save the universe.

Ben Tennyson:
And then turn evil again.

Professor Paradox:
The story isn't over, Ben. When the moment comes, you'll do what needs to be done. That is your greatest gift.

Gwen Tennyson:
Goodbye, Ben. Try being nicer to your cousin. [kisses Young Ben on the cheek]

Young Ben Tennyson:
[blushing] Aw, why did you have to go do that?

Professor Paradox:
It's time for us to go. Before the locals notice my presence.

Gwen Tennyson:
What about Kevin?

Ben Tennyson:
Don't worry, Gwen. I'll take care of him.