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

Nothing happens quite by chance. It's a question of accretion of information and experience.

Are we being good ancestors?

I pictured myself as a virus or a cancer cell and tried to sense what it would be like.

It is courage based on confidence, not daring, and it is confidence based on experience.

Eventually we'll realize that if we destroy the ecosystem, we destroy ourselves.

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.

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.

Our greatest responsibility is to be good ancestors.

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.