The X-Files, Season 6

Spender:
You're not supposed to come here. It's what was agreed to. It's the deal you made.

Cigarette Smoking Man:
I had to congratulate you. Commend how you handled things. How you handled Mulder.

Spender:
I did what I was asked.

Cigarette Smoking Man:
You did well, son. He's on very thin ice now, you know?

Spender:
Mulder will be back. As long as he lives, he won't give up.

Cigarette Smoking Man:
Well, there's solutions, of course. Simple but extreme solutions. I've used these methods. They have their place. But not here.

Spender:
(surprised) You've killed men?

Cigarette Smoking Man:
You can kill a man but you can't kill what he stands for... Not unless you first break his spirit. That's a beautiful thing to see.