Songs won't save the planet, but neither will books or speeches.

The first step in solving a problem is admitting there is a problem to be solved.

My dad, the old professor, used to say, 'Never get into an argument about what's folk music and what isn't.'

I’ve never sung anywhere without giving the people listening to me a chance to join in - as a kid, as a lefty, as a man touring the U.S.A. and the world, as an oldster. I guess it’s kind of a religion with me. Participation. That’s what’s going to save the human race.

I would ask, "How can one have a technological society without research? How can one have research without researching dangerous areas? How can one research dangerous areas without uncovering dangerous information? How can you uncover dangerous information without it falling into the hands of insane people who will sooner or later destroy the human race, if not the whole of life on earth?" Who knows? God only knows!

The easiest way to avoid wrong notes is to never open your mouth and sing. What a mistake that would be.

There is no such thing as a wrong note ... just as long as you're singing along.