We must always refill and ensure there is a critical mass of leaders and activists committed to nonviolence and racial and economic justice who will keep seeding and building transforming movements.

It was clear to me as a civil rights leader in the '60s that unless we put the social and economic underpinnings beneath the political and the civil rights, we wouldn't go anywhere.

When President Kennedy was elected, many black Americans, like so many Americans, were captivated by his youth and energy and promise and were especially hopeful that he might move the country in a new direction on civil rights.

It was very clear to me in 1965, in Mississippi, that, as a lawyer, I could get people into schools, desegregate the schools, but if they were kicked off the plantations - and if they didn't have food, didn't have jobs, didn't have health care, didn't have the means to exercise those civil rights, we were not going to have success.

Of capital importance is to have a good diet and exercise a lot.

Health care can be made more affordable for the poor without requiring major new scientific developments, just the smart application of current technologies. We have seen a $25 incubator and diagnostic instruments that are built tough, cheap, and reusable for the developing world.

What I am saying is, all health care has a problem with costs. Medicare is growing slower than the private insurance plans. Why? Because of their efficiency. They don't have to give money to shareholders. Why should be defending shareholders?

Money spent on carbon cuts is money we can't use for effective investments in food aid, micronutrients, HIV/AIDS prevention, health and education infrastructure, and clean water and sanitation.