Our democracy, our constitutional framework is really a kind of software for harnessing the creativity and political imagination for all of our people. The American democratic system was an early political version of Napster.

A zebra does not change its spots.

The planet has a fever. If your baby has a fever, you go to the doctor. If the doctor says you need to intervene here, you don't say, `Well, I read a science fiction novel that told me it's not a problem.'... You take action.

Science has a culture that is inherently cautious and that is normally not a bad thing. You could even say conservative, because of the peer review process and because the scientific method prizes uncertainty and penalises anyone who goes out on any sort of a limb that is not held in place by abundant and well-documented evidence.

The carbon fuels industry-big oil and coal-have a 50-year lease on the Republican Party and they are drilling it for everything it's worth.

Iraq's search for weapons of mass destruction has proven impossible to deter and we should assume that it will continue for as long as Saddam is in power.

(George Bush) betrayed this country! He played on our fears. He took America on an ill-conceived foreign adventure dangerous to our troops, an adventure preordained and planned before 9/11 ever took place!