In 1967 I entered Harvard as a freshman, confident - in the way that only 17-year-olds are - that I could change the world. My major was African Studies, and my plan was to travel to Tanzania, where President Julius Nyerere was creating a government based on democracy and socialism.

I hope I'm an integrous person who cleans up their messes when I've been a jerk.

With slide guitar, you're just hanging this piece of glass on your hand. It's a really beautiful instrument in that it's so responsive, you're just slipping your hand back and forth.

It's always enjoyable to listen to a friend's work, but if it doesn't resonate with you, then you can just appreciate it and it inspires you in its own way.

Distribution has really changed. You can make a record with a laptop in the morning and have it up on YouTube in the afternoon and be a star overnight. The talent on YouTube is incredible, and it can spread like wildfire. The downside is that it's very hard to convince the younger generation that they should pay for music.

The challenge of course is in sobriety and that's been the blessing, to realize, to take accountability for the ways that your own thinking impacts your happiness, and your serenity, and your ability to be a productive and a loving, giving member of your family and society.

We did a two month tour with Taj Mahal that was really healing and cathartic and a good distraction after my brother passed away. Then I knew I wanted to take a year off, and it was really nice to have that chance to fall apart.