“When asked if I am pessimistic or optimistic about the future, my answer is always the same: If you look at the science about what is happening on earth and aren’t pessimistic, you don’t understand data. But if you meet the people who are working to restore this earth and the lives of the poor, and you aren’t optimistic, you haven’t got a pulse. What I see everywhere in the world are ordinary people willing to confront despair, power, and incalculable odds in order to restore some semblance of grace, justice, and beauty to this world.”

“When asked if I am pessimistic or optimistic about the future, my answer is always the same: If you look at the science about what is happening on earth and aren’t pessimistic, you don’t understand data. But if you meet the people who are working to restore this earth and the lives of the poor, and you aren’t optimistic, you haven’t got a pulse. What I see everywhere in the world are ordinary people willing to confront despair, power, and incalculable odds in order to restore some semblance of grace, justice, and beauty to this world.”

“Sustainability, ensuring the future of life on Earth, is an infinite game, the endless expression of generosity on behalf of all.”

“I think an old style of addressing environmental problems is ebbing, but the rise of the so-called conservative, political movement in this country is not a trend towards the future but a reaction to this very broad shift that we are undergoing.”

“We are now heading down a centuries-long path toward increasing the productivity of our natural capital - the resource systems upon which we depend to live - instead of our human capital.”

“We assume that everything's becoming more efficient, and in an immediate sense that's true; our lives are better in many ways. But that improvement has been gained through a massively inefficient use of natural resources.”

“All is connected... no one thing can change by itself.”

“We're trained to see the world in terms of charismatic organizations and charismatic people. That's who we look to for leadership and change, for transformation. We're awaiting the next J.F.K., the next Martin Luther King, the next Gandhi, the next Nelson Mandela.”

“The responses that environmentalists evoke - fear, anxiety, numbness, despair - are not helpful, even if they are understandable. It should be fascinating, even enthralling, to be in the milieu of environmental change.”

“It is possible for the assembly-line worker consigned to tightening the bolts on the transmission and the office worker who processes medical insurance claims to work with pride and efficiency, but it's not easy to maintain that attitude.”

“We need to revise our economic thinking to give full value to our natural resources. This revised economics will stabilize both the theory and the practice of free-market capitalism. It will provide business and public policy with a powerful new tool for economic development, profitability, and the promotion of the public good.”

“When cattle ranchers clear rain forests to raise beef to sell to fast-food chains that make hamburgers to sell to Americans, who have the highest rate of heart disease in the world (and spend the most money per GNP on health care), we can say easily that business is no longer developing the world. We have become its predator.”