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.

Online, you can become much more than a reactive donor - you can become a proactive, strategic, collaborative philanthropist, improving your giving every day by tapping into the wealth of philanthropic resources available at the tap of a keyboard or the click of a mouse.

I worked with Mrs. Davis for four years, and then she realized, as the material started getting harder, that I had never learned to read. I was just listening as she'd play the song, and I'd play it back. When that happened, she got very upset and stopped being my teacher.

It's a basic tenet you learn at drama school. If you're playing someone evil, you can't make an objective moral judgment. You've got to get inside the character and empathize as much as possible.

My early education was in the public school system of Omaha, where, retrospectively, I realize that my high school training served me in good stead for the basic subjects of mathematics, English, foreign languages and history.

Subsidies on petroleum products and fertilizers should be phased out in a defined, time-bound manner. The resources that would get freed up could then be used to fund various social sector programmes in education, healthcare and other priority sectors.