And there's a wonderful parable in the New Testament: The sower scatters seeds. Some seeds fall in the pathway and get stamped on, and they don't grow. Some fall on the rocks, and they don't grow. But some seeds fall on fallow ground, and they grow and multiply a thousandfold. Who knows where some good little thing that you've done may bring results years later that you never dreamed of?

I feel that my whole life is a contribution.

I never intended to make a living from music. That's the funny thing. I wanted to be a journalist.

John Adams and Thomas Jefferson corresponded for 13 years before they died on the same day. They asked, "How can one have prosperity without commerce? How can one have commerce without luxury? How can one have luxury without corruption? How can you have corruption without the end of the Republic?" And they really didn't know the answer.

It was Rachel Carson's famous book 'Silent Spring' that got me involved with the environment. I read it in The New Yorker, in installments. Up to then, I'd thought the main job to do is help the meek inherit the Earth. And I still, that's a job that's got to be done. But I realized if we didn't do something soon, what the meek would inherit would be a pretty poisonous place to live.

Long live teachers of children, because they can show children how they can save the world.

In a world of private property, if something isn't owned by somebody, it's going to be misused by somebody else.