You can express your generosity in ways that are virtually limitless. This was what I wanted to convey in 'Giving 2.0' - that whether you have $10 or $10 million to give, if you identify the right opportunities and make the most of your resources, your impact can be tremendous.

Philanthropy is often seen as society's risk capital. That means the onus is on philanthropists, nonprofit leaders and social entrepreneurs to innovate. But philanthropic innovation is not just about creating something new. It also means applying new thinking to old problems, processes and systems.

How I see my career is very much as an entrepreneur in the field of philanthropy.

Of course, giving is deeply emotional. But supplementing emotion with research makes it more likely that a gift can have a bigger impact. It's like any investment. After all, you wouldn't put funds into stocks or bonds without understanding the potential return. Why wouldn't you do the same when investing in society?

At 19, I got signed up for commercials, it was easy money.

One of the main reasons that the landscape of financial stuff in America is different is that gambling is illegal there. So there's a kind of sport-like aspect to the American coverage of finance.

Since I finished on 'The Mentalist,' I didn't need to be so near to the studio, so we decided to move a bit further out where you can get more house for your money, too. It definitely feels more like home.

I have had the opportunity to become acquainted with many wonderful people from many walks of life. I have known rich and poor, famous and modest, wise and otherwise.