The Book of Eli2010

Solara:
You know, you say you've been walking for thirty years, right?

Eli:
Right?

Solara:
Have you ever thought that maybe you were lost?

Eli:
Nope.

Solara:
Well, how do you know that you're walking in the right direction?

Eli:
I walk by faith, not by sight.

Solara:
[sighs] What does that mean?

Eli:
It means that you know something even if you don't know something.

Solara:
That doesn't make any sense.

Eli:
It doesn't have to make sense. It's faith, it's faith. It's the flower of light in the field of darkness that's giving me the strength to carry on. You understand?

Solara:
Is that from your book?

Eli:
No, it's, uh, Johnny Cash, Live at Folsom Prison.