Smallville, Season 4

Clark:
How long is this gonna continue, Lex?

Lex:
I don't know. What do you want me to tell you?

Clark:
I don't want you to tell me anything. I want you to change.

Lex:
I don't know if I can.

Clark:
You know, it seems the only person you care about is yourself. There's a whole side of you that I don't know about, Lex. And what else don't I know about you?

Lex:
You don't know that every day, I wonder why I keep going. Why I do the things I do. You know, Shannon might have been crazy, but she was right about me. I treated those women terribly, Clark. People died, and I could've stopped it. I see that now.

Clark:
Well, that's a start.

Lex:
You know, there was a moment the other night when that fire she set was coming towards me. I thought, good. It would save the world a lot of grief. But somehow, the fire went out. And she was lying on the floor. And suddenly, I had a second chance.

Clark:
The last few days, Lex, I thought your father was being more honest with me than you were. And I hated that feeling. I felt like we were enemies.

Lex:
Don't give up on me yet.