I love Black Sabbath. They made an amazing contribution to music today. Almost every band that made it big in the Nineties owed a debt to them.

There are times when I feel like I'm a traveling minister. I'm trying to go out and get kids to pick-up yard sale instruments and change the world.

When I listen to the radio, I just hear so much music that doesn't even sound like people. The vocals are all tuned, and the drums are all fake.

You can make yourself the greatest singer in the world or the best drummer in the world with the aid of technology.

The human element of making music is what's most important.

When I was a teenager, working towards dropping out of high school to starting to tour with bands, I'd drive around in my VW Bug every morning before school, very stoned listening over and over to Zeppelin. This song got to me because it just seemed mystical. There is something about those Celtic tunings that almost sounds Eastern. Somehow it would sweep me up into my own little trance-like state, like Sting with those shamans in the Amazon. But all I had was a bong and a Led Zeppelin cassette.

When there's so much left to do, why spend your time focusing on things you've already done, counting trophies or telling stories about the good old days?