One of the most important lessons we can glean from the environmental movement is to 'think globally and act locally.'

The great thing about getting older is that you get a chance to tell the people in your life who matter what they mean to you.

I know there's millions of problems in the world, but if you dwell on those, then you're going to be miserable. I think my meditation helps me to transcend and get beyond the grip of all the negativity and regenerate from within a more positive attitude, which comes in very handy when you're going to do 150 concerts a year.

Keep a cool head and a warm heart.

Keep a cool head and a warm heart.

The history of mankind is a history of war.