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.

In blues, classical and jazz, you get more revered with age.

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.

Pat Benatar might need a rock band, but I can just sit with a blues guitar for an hour and a half and do folk songs and great contemporary ballads, and not many people can pull that off.

There's so many amazing articles coming out all the time and because of the internet circulating great writing - even if the writers don't get paid enough most of the time, unfortunately - but there's never been a more amazing flow of information on all of the issues. I would love to see a revival of what we had against the war in the '60s - we could do thes

I like to think I get better with age, but maybe absence makes the heart grow fonder.

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.