[Sam Phillips] laughed at me. I just didn't like the way I Walk The Line sounded to me. I didn't know I sounded that way. And I didn't like it. I don't know. But he said let's give it a chance, and it was just a few days until - that's all it took to take off.

My contract with mercury PolyGram Nashville was about to expire. And I never had really been happy. The company, the record company, just didn't put any promotion behind me. I think one album, maybe the last one I did, they pressed 500 copies. And I was just disgusted with it. And about that time that I got to feeling that way, Lou Robin, my manager, came to me and talked to me about a man called Rick Rubin that he had been talking to that wanted me to sign with his record company.

Rick Rubin had his hair - I don't think it's ever been cut and very - dresses like a hobo, usually - clean but . Was the kind of guy I really felt comfortable with, actually. I think I was more comfortable with him than I would have been with a producer with a suit on.

There is a spiritual side to me that goes real deep, but I confess right up front that I'm the biggest sinner of them all.

There's a man going 'round taking names / And he decides who to free and who to blame / Everybody won't be treated all the same / There'll be a golden ladder reaching down / When the Man comes around.

They're powerful, those songs. At times they've been my only way back, the only door out of the dark, bad places the black dog calls home.

In the Air Force, I had an old Wilcox Gay recorder, and I used to hear guitar runs on that recorder going (vocalizing) like the chords on "I Walk The Line." And I always wanted to write a love song using that theme, that tune.