You ought not be afraid of nuclear, but respectful of it. Yes, it has dangers, but it also has benefits. If not for nuclear, much of the medicine that's saving lives today would not be in existence.

We have a moral responsibility to protect the earth and ensure that our children and grandchildren have a healthy and sustainable environment in which to live.

An ability to compromise is important. That means stepping back and getting the ego out of the way in order to accomplish what you want to get done.

A lot of very competent people sometimes make errors.

A question I often get is, "How do you maintain your sanity with so much happening all around you?" I think I developed a certain mental toughness that is required in the business. You have to have a thick skin and a brass bottom, because you're going to kicked a lot.

But reducing harmful emissions, abating our dependence on foreign oil and developing alternative renewable energy sources have benefits that go beyond environmental health, they improve personal health, enhance national security and encourage our nations economic viability.

I admire and respect Bill Clinton. I think he was a great president.