John Mackey

While we clearly need health-care reform, the last thing our country needs is a massive new health-care entitlement that will create hundreds of billions of dollars of new unfunded deficits and move us much closer to a government takeover of our health-care system.

I think for leadership positions, emotional intelligence is more important than cognitive intelligence. People with emotional intelligence usually have a lot of cognitive intelligence, but that's not always true the other way around.

I want to tell mayors, county chiefs and heads of big companies: don't just chase GDP growth; don't chase the biggest profits at the expense of our children and grandchildren and at the cost of sacrificing our ecological environment.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.