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.

You can only do three things with your money. You can spend it. You can invest it. Or you can give it away. And if you invest it, you're really just getting more money to give away or buy something. How many things can you buy? So I don't really think there's a lot of choices.

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.

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 don't really try to get involved politically by giving money to politicians or by saying I'm a Democrat or Republican. Right now, I just view myself as an American.

All I'm doing is I'm filling out my tax returns - or my accountants are, and I'm paying whatever I'm supposed to pay, though I'm giving away a large amount of the money and that probably lowers my tax rate because I'm giving away so much money. But change the law, but don't blame me for the law. I'm not writing the law. I didn't write the law.

It's clear to me when you do private equity well, you're making companies more efficient and helping them grow and become more profitable. That success means our investors - such as public pension funds - benefit, which contributes to the economic wealth of society.

I'm blessed by the fact I only need five hours of sleep on a daily basis. I do tend to regard Saturday and Sunday as work days.

As the baby boomers like me are retiring and getting ready to retire, they will spend whatever it takes - and theyre the wealthiest generation in our country - to make themselves live an enjoyable life in their retirement years.

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.

Sometimes the best decisions in life are on the spur of the moment. So I generally try to do what I think is right. And sometimes I make mistakes.

My work life is intense. But I love what I do.

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.

For me, few things are more compelling than watching a great opera.

I regard food as fuel. I am not a brunch person.

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.

Persist - don't take no for an answer. If you're happy to sit at your desk and not take any risk, you'll be sitting at your desk for the next 20 years.