When we got organized as a country, [and] wrote a fairly radical Constitution, with a radical Bill of Rights, giving radical amounts of freedom to Americans, it was assumed that Americans who had that freedom would use it responsibly...When personal freedom is being abused, you have to move to limit it.

A significant number of petroleum geologists believe that we will reach the global maximum of petroleum extraction within this decade or that we have already reached it. Peak Oil happened in 1970 in America, when over half of our oil that we gained from the soil was exhausted ... This is very disturbing, regardless of global warming.

In science, if the last 50 years were the age of physics, the next 50 years will be the age of biology.

I mean, you know, this idea that somebody we disagree with on economic or social policy or something we have to turn into some kind of ogre or demon, I think, is a mistake. I mean, it's like telling the American people or half the American people that don't agree with you they're all fools. That's just not true.

Profound and powerful forces are shaking and remaking our world. And the urgent question of our time is whether we can make change our friend and not our enemy.

If we disagree and I think I'm right, I just go ahead and do what I think is right. And then she tells me, 'I told you so.'

Our military superiority is so great - it's far greater than it was in the Gulf War, and the Gulf War was over in 100 hours after we bombed for 43 days. And so now they can bomb for a couple of days and then just roll into Baghdad... The odds are there's going to be a war and it's going to be not for very long.