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

I do what I feel impelled to do, as an artist would. Scientists function in the same way. I see all these as creative activities, as all part of the process of discovery. Perhaps that's one of the characteristics of what I call the evolvers, any subset of the population who keep things moving in a positive, creative, constructive way, revealing the truth and beauty that exists in life and in nature.

I look upon ourselves as partners in all of this, and that each of us contributes and does what he can do best. And so I see not a top rung and a bottom rung - I see all this horizontally - and I see this as part of a matrix. And I see every human being as having a purpose, a destiny, if you like - the destiny that exists in each of us - and find ways and means to provide such opportunities for everyone.

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

My job is to help people see what I see. If it's of value, fine. And, if it's not of value, then at least I've done what I can do.

Are we being good ancestors?

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