I can tell you, Massachusetts, fastest growing sector of our economy is clean energy and energy efficiency companies. And they're growing faster than any other sector.

I would rather be the candidate of the NAACP than the NRA.

The American spirit wears no political label. In service to others and yes, in sacrifice for our country, there are no Republicans; there are no Democrats; there are only Americans.

I saw courage both in the Vietnam War and in the struggle to stop it. I learned that patriotism includes protest, not just military service.

Politics has always been the art of the possible. Today it's too often the art of the probable - tinkering around the edges without any greater vision, without a sense of optimism and imagination.

I'm proud of my medals. I always was proud of them.

It's hard to believe that in the greatest democracy in the world, we need legislation to prevent the government from writing and paying for the news.

Being lectured by the president on fiscal responsibility is a little bit like Tony Soprano talking to me about law and order in this country.

How do you ask a man to be the last man to die in Vietnam? How do you ask a man to be the last man to die for a mistake?

Climate change is real. The science is compelling. And the longer we wait, the harder the problem will be to solve.

You just don't invade another country on phony pretext in order to assert your interests!

It means, Doug Swieteck, that in this class, you are not your brother.

In general, empathy is easier the more we can identify with someone. When we can genuinely envision ourselves in a situation, it's possible to intuit what that person's suffering might feel like.

The No. 1 thing I am earnestly attracted to is intelligence.

The Chinese are the greatest that ever came about, they are the greatest currency manipulators ever.

There is little in life so reassuring as a genuine welcome.

Science fiction writers put characters into a world with arbitrary rules and work out what happens.

I worry about technical details - did I mix the cello half a decibel too high? Things like that.

Once your kids are grown and you know that you're completely healthy, consider canceling your life insurance policy.

The tragedy of life is not so much what men suffer, but rather what they miss.

I am but mad north-north-west. When the wind is southerly, I know a hawk from a handsaw.