Good parents give their children Roots and Wings. Roots to know where home is, wings to fly away and exercise what's been taught them.

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

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

Intuition will tell the thinking mind where to look next.

I think of the need for more wisdom in the world, to deal with the knowledge that we have. At one time we had wisdom, but little knowledge. Now we have a great deal of knowledge, but do we have enough wisdom to deal with that knowledge?

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

As a child I was not interested in science. I was merely interested in things human, the human side of nature, if you like, and I continue to be interested in that. That's what motivates me.