His belief in the power of music to convey ideas - not just entertain - has filtered down to musicians in every field, from alt-rock to hip-hop, from Bruce Springsteen and U2 to Arcade Fire and Kanye West. Popular music is different because of Johnny Cash.

I've never let a rhinestone go unturned

There's a marvelous sense of mastery that comes with writing a sentence that sounds exactly as you want it to. It's like trying to write a song, making tiny tweaks, reading it out loud, shifting things to make it sound a certain way... Sometimes it feels like digging out of a hole, but sometimes it feels like flying. When it's working and the rhythm's there, it does feel like magic to me.

I don't play long parts. They must be short parts, but they've got to be parts that mean something, that matter, where people will notice when I'm on the screen, and people will remember the character after they've seen the film.

I am trying to counter the fixity of architectures, their stolidity, with elements that give an ineffable immaterial quality.

To hell with reality! I want to die in music, not in reason or in prose. People don't deserve the restraint we show by not going into delirium in front of them. To hell with them!