Eli: “No, I walk by faith, not by sight. It means that you know something even if you don’t know something. It doesn’t have to make sense, it’s faith, it’s faith. It’s the flower of light in the field of darkness, it’s giving me the strength to carry on, you understand?”
Solara: “Is that from your book?”
Eli: “No it’s Johnny Cash, Live at Folsom Prison.” – Denzel Washington as Eli, The Book of Eli. (Screenplay by Gary Whitta)