Suppose that climate change is not real and all we do is adopt green technologies, which our economy and our technology is perfectly capable of. Then all we've done is given our kids a cleaner world.

The fact that we did not give the demonstrators in Iran our moral support when a young woman named Neda bled to death in the streets of Iran will go down as one of the great mistakes of the 21st Century.

War is awful. Nothing, not the valor with which it is fought nor the nobility of the cause it serves, can glorify war. War is wretched beyond description and only a fool or a fraud could sentimentalize its cruel reality. Whatever is won in war, it is loss the veteran remembers.

As long as there is a war on terrorism going on, we're all going to have to work together.

The day that the leadership of the military comes to me and says, "Senator, we ought to change the policy," then I think we ought to consider seriously changing it.

Russia is a gas station masquerading as a country. It's kleptocracy, it's corruption, it's a nation that's really only dependent upon oil and gas for their economy.

I think that Donald Rumsfeld will go down in history as one of the worst secretaries of defense in history. We are paying a very heavy price for the mismanagement - that's the kindest word I can give you - of Donald Rumsfeld, of this war.