We're going in the wrong direction and I think the only way to counter that is to bring the story home in really concrete ways to people - in ways that kids can understand and non-scientists can understand.

When you can't rely on sticking a pipe in the ground, what you have to rely on is unlocking the energy and talent of all your people - men and women.

America was the funder of petro-dictatorships. We treated all these countries as basically big, large gas stations: Libya station, Iraq station, Iran station, Egypt station, Syria station, and all we asked of them were three things: Keep your palms open, your prices low and don't bother Israel too much, and you can do whatever you want to your own people.

Until we fully understand what turned two brothers who allegedly perpetrated the Boston Marathon bombings into murderers, it is hard to make any policy recommendation other than this: We need to redouble our efforts to make America stronger and healthier so it remains a vibrant counterexample to whatever bigoted ideology may have gripped these young men....And the best place to start is with a carbon tax.

When I was growing up, my parents told me, 'Finish your dinner. People in China and India are starving.' I tell my daughters, 'Finish your homework. People in India and China are starving for your job.'

The Arab awakening has been, up to now, a lot about freedom from dictatorial regimes - Syria, Yemen, Libya, Tunisia, Bahrain and Egypt. But once you got freedom from, then you need freedom to. Freedom from is about destroying things. Freedom to is about constructing things, constructing the rule of law.

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