Our greatest responsibility is to be good ancestors.

A wisdom deficit - fewer elders and even fewer people who listen to them.

It is possible to create an epidemic of health which is self-organizing and self-propelling.

It is said to await certainty is to await eternity.

The mind, in addition to medicine, has powers to turn the immune system around.

If all insects disappeared, all life on earth would perish. If all humans disappeared, all life on earth would flourish.

What people think of as the moment of discovery is really the discovery of the question.

Your dreams tell you what to do; your reason tells you how to do it.

I feel that the greatest reward for doing is the opportunity to do more.

Evolution favors the survival of the wisest.

Find the right questions. You don't invent the answers, you reveal the answers.

Life is an error-making and an error-correcting process.

Risks, I like to say, always pay off. You learn what to do, or what not to do.

There is hope in dreams, imagination, and in the courage of those who wish to make those dreams a reality.

There is no such thing as failure, there's just giving up too soon.

The most important question we must ask ourselves is, 'Are we being good ancestors?'

I think that rebellions arise out of anger, and they're very short-lived.

The struggle we're dealing with these days, which, I think, is part of what the 60s represented, is how do we define our humanity?

I think Detroit shows that we've come to the end of the industrial epoch and have to find a new mode of production.