"I believe my own commitment was initially shaped by those I admired and tried to emulate. I was first moved by animal life, then my interest extended to nature, and then to mankind. My commitment to sustainable development stemmed from fieldwork, from studying the Earth on a daily basis, from encounters and from readings. I became aware that my photos were useful, and that my own convictions gave them additional value. Besides, the more conscious one is of the issues at stake, the more interest one takes in our planet, the greater the desire to actively engage in change for the better."