I strongly agree with Vice President Gore that we cannot drill our way to energy independence, but must fast-track investments in renewable sources of energy like solar power, wind power and advanced biofuels...

The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope.

I'll change the posture of our federal government from being one of the most anti-science administrations in American history to one that embraces science and technology.

I think that the Democratic Party is a big tent, which means that there are positions I may not agree with.

My hope is Donald Trump makes things better. And if he does, we'll all benefit from it.

There are things I cannot say.

Occasionally I would like the German people to give us the benefit of the doubt, given our history, as opposed to assuming the worst -- assuming that we have been consistently your strong partners and that we share a common set of values.