When I worked in the White House for President Carter, we tried to do comprehensive tax reform and we made some progress, and other presidents have as well.

Moneymaking was never anything to me. I was happy never making money; I just was happy doing things I liked. But I fell into the money thing. I now don't feel guilty about it, but I am determined to give away the bulk of it and enjoy doing it.

I'm on a lot of nonprofit boards, but if I didn't enjoy it I wouldn't do it. I haven't yet done anything that's transformational in philanthropy. But I hope at some point to target two or three causes or organizations and really make transformational gifts.

I think it's a little unfair for people to say you're not paying your fair share of taxes. I'm paying what I'm supposed to pay. Change the law, and I'll pay what I'm supposed to pay.

Obama had reached out to the business community, they just haven't liked all of his decisions and some of his rhetoric. But generally, I think the administration is quite open and accessible.

I give away about 50 percent of my income, so my, you know, desire to give back to the country is pretty strong and I intend to give away a lot more. I've signed the giving pledge with Warren Buffett and Bill Gates, and I intend to give away the bulk of my money.

I really hope that the philanthropy movement is seen not just as wealthy people giving money away but wealthy people giving away their time, their energy and their ideas.