In my view, art and the approach to life through art, using it as a vehicle for education and even for doing science is so vital that it is part of a great new revolution that is taking place. I believe we are entering a whole new epoch.

When I worked on the polio vaccine, I had a theory. I guided each [experiment] by imagining myself in the phenomenon in which I was interested. The intuitive realm . . . the realm of the imagination guides my thinking.

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?

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.

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

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

A good parent gives their child roots and wings.