Smallville, Season 10

Clark Kent:
You made yourself the most hated man in your world. But there's still a chance of redemption for you.

Clark Luthor:
Redemption? Looks like the two of us have different preoccupations.

Clark Kent:
I'm sorry that you weren't found by Jonathan and Martha Kent. The thing is, you could have killed Tess in an instant. But something was holding you back. You can go to your world and show people what you can give them, change their minds.

Clark Luthor:
Why would you ever believe in me?

Clark Kent:
Because I know you. And Lionel's not there anymore. You don't need to be defined by your past, you can choose a different future. So trust me.