I'm the same on stage as I am off stage. A lot of people who I admire - Bruce Springsteen, Jackson Browne - are not that different either. You hope that if you met them that they'd be as nice and well-rounded as they appear.

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.

It is still a surprise when people tell me that I've had an influence on them, particularly when it's someone I really respect.

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

I would rather feel things in extreme than not at all.

I'm one of those people who just doesn't plan my personal life. I plan my professional life.

Maybe the idea of me is more powerful than I perceive myself being.