Luther, Series 1

Alice Morgan:
I've been wondering, why do you think he does it?

Zoe Luther:
Why does who do what?

Alice Morgan:
John, his job. It takes such a toll. Why does he put himself through it?

Zoe Luther:
I don't see how this is relevant.

Alice Morgan:
Well, it is. Right this second, you might actually be helping him. What do you think compels him to do it?

Zoe Luther:
He believes one life is all we have, life and love. Whoever takes life steals everything.

Alice Morgan:
And do you agree?

Zoe Luther:
I don't know. I think if he'd read a different book by a different writer at just the right time in his life he'd have been a different man. He'd have been happier as a priest than-

Alice Morgan:
Than what?

Zoe Luther:
Than what he is.