Interestingly, the oil companies know very well that in less than 30 years they will not only be charging very high prices, but that they will be uncompetitive with renewables.

Don't go to business school.

Healing the wounds of the earth and its people does not require saintliness or a political party, only gumption and persistence. It is not a liberal or conservative activity; it is a sacred act.

The bottom line is down where it belongs – at the bottom. Far above it in importance are the infinite number of events that produce the profit or loss.

Natural capitalism is not about making sudden changes, uprooting institutions, or fomenting upheaval for a new social order. Natural capitalism is about making small, critical choices that can tip economic and social factors in positive ways.

It costs the same to send a person to prison or to Harvard. The difference is the curriculum.

Don't be put off by people who know what is not possible. Do what needs to be done, and check to see if it was impossible only after you are done.