The occupation of America (and Columbus's arrival quite clearly was an occupation, no one can deny that) meant that the entire history of the Native Americans was rendered invisible. The land could only be occupied if it was first defined as empty. So it was defined as a wilderness, even though it had been used by native people for millennia.

An organic farmer is the best peacemaker today, because there is more violence, more death, more destruction, more wars, through a violent industrial agricultural system. And to shift away from that into an agriculture of peace is what organic farming is doing.

It is only with local [agriculture] that we can manage the complexity and care that sustainability requires.

The art of teaching is clarity and the art of learning is to listen.

I think we will become disenchanted with the glamour of globalization.

I still can't figure out what inspired me to do physics. But since I was nine or ten years old, I wanted to be like [Albert] Einstein. He was my hero. I knew no physicists. I knew no scientists. I had nobody around me. And I went to a convent that didn't even have higher mathematics and physics. I taught myself these subjects in order to get into university.

One particular spark was when I went back to my favorite spot in the mountains where my father always used to take us before my graduate studies in Canada and finding that the stream I had gone swimming in wasn’t there. The forest had been converted into an apple orchard with World Bank financing. The entire place, literally, had changed.