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.

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.

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?

The most important thing is to understand that this career is not about speed. It's about stamina. This is a marathon. It's not a 50-meter sprint. You have to persevere and understand it takes a lot of time. You have to know you're going to knock on 100 doors and 99 of them are going to close in your face.

Early on in my career, I'd go into the makeup trailer, and they'd spend an hour doing my makeup, and I would hate it. I'd go into the bathroom, wash it off and start over again, which took an enormous amount of time. So I just started doing it myself.

Like any small business owner, I experienced the pressures of building a company from the ground up - developing a business plan, balancing the books, meeting payroll and building a customer base.

Part of what makes you great as a young player can hurt you at the end of your career, in terms of you need a certain amount of ego, a certain amount of arrogance to be able to play well and to push yourself and trick yourself into thinking you're better than you really are.