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

What you see in living systems, and in genetic systems, is that the genes are already there, having arisen in the course of time, and when they are needed they become activated. If they had to be invented, the time would be too late.

I overcame the nightmares because of my dreams.

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

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

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.

There is a moment of conception and a moment of birth, but between them there is a long period of gestation.