China has a more assertive, proactive foreign policy as its interests are growing around the world.

U.S. exports to China have more than quintupled since China entered the WTO and have grown more quickly than imports. In fact, China is America's fastest-growing export market.

I have always tried to live by the philosophy that when there is a big problem that needs fixing, you should run towards it, rather than away from it.

The Treasury Department has a critical role to play in helping to set the direction of a U.S. and global economy, a role that reaches back to America's founding.

We have to overthrow the idea that it's a diversion from 'real' work when scientists conduct high-quality research in the open. Publicly funded science should be open science. Improving the way that science is done means speeding us along in curing cancer, solving the problem of climate change and launching humanity permanently into space.

I have this fantasy that in future negotiations over climate change - instead of going into that room and saying, 'I'm defending Chinese interests,' or 'I'm defending Australian interests' - there will also be an identity inside of each of the negotiators thinking, 'I'm also defending human interests.'

My dad worked for the Fish and Wildlife Service, and he worked for the Department of Interior, you know, like the federal government. And consequently, I was outdoors a lot in my lifetime.

Advertising is an environmental striptease for a world of abundance.