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At times, I have been criticized by some philosophers of education, who place me in postures that they classify pejoratively as 'revolutionary.' But I have had the satisfaction of being invited to work in societies making progressive efforts without wavering. They were changing, and so they called on me.

Do not allow yourself to imagine that revolutionary thinking can be propagated by governmental power.

I saw that there are people who will connive against innovation. They're hostile to it. And that has shaped my behavior ever since.

People often ask me why I persisted in doing research on a subject that was so controversial. I frequently respond by telling them that only a few scientists are granted the great fortune to pursue topics that are so new and different that only a small number of people can grasp the meaning of such discoveries initially.

I've always been fascinated by activists, people who will devote their life to a cause, people who go to India and to Africa and put their life in jeopardy to do what they believe is right.

If you're a pioneer and you come up with something that can change the world and you turn round and say 'I'm not going to share this idea with anyone,' then you only impact the few and not the many.

I'm becoming more and more apolitical - I think the most revolutionary thing you can do is just live your life and have a good time. Before they scoop you up on the street or you die.

To be a revolutionary you have to be a human being. You have to care about people who have no power.

I believe that if you have revolutionary potential, you must make the world a better place and use it.

I have friends who are science journalists, and I'm seeing stories of theirs or talking with them about ideas that they're pitching. Certain kinds of science are around me all the time, like climate change and biology.