Don't go to business school.

Always leave enough time in your life to do something that makes you happy, satisfied, even joyous. That has more of an effect on economic well-being than any other single factor.

The most unrealistic person in the world is the cynic, not the dreamer.

Businesses who are members of Businesses for Social Responsibility or the Social Venture Network are internalizing costs on a voluntary basis and therefore raising their costs of doing business, but their competitors are not required to.

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.

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

Intelligent policies will be largely self-regulating in the sense that the system of incentives and standards makes it absolutely ludicrous to not move towards clean, internalized systems of cost and production.