We need scientists to design new fuels. We need farmers to help grow them. We need engineers to invent new technologies. We need entrepreneurs to sell those technologies. We need workers to operate assembly lines that hum with high-tech, zero-carbon components. We need builders to hammer into place the foundations for a clean energy age. We need diplomats and businessmen and women, and Peace Corps volunteers to help developing nations skip past the dirty phase of development and transition to sustainable sources of energy. In other words, we need you.

As I said in my State of the Union address ensuring the security of the United States and the safety of our people demands a smart, patient and disciplined approach to the world.

What the Paris agreement now does is say to China and India and other countries that are potentially polluting, come on board. Let's work together so you guys do the same thing.

Don't get cynical. Don't ever think you can't make a difference.

I think that [Donald Trump] clearly was able to tap into a lot of grievances. And he has a talent for making a connection with his supporters that overrode some of the traditional benchmarks of how you'd run a campaign or conduct yourself as a presidential candidate. What will be interesting to see is how that plays out during the course of his presidency.

If somebody was sending rockets into my house, where my two daughters sleep at night, I’m going to do everything in my power to stop that, and I would expect Israelis to do the same thing.

In a world of complex threats, our security and leadership depends on all elements of our power - including strong and principled diplomacy.