Medical tests have shown that giving stimulates a part of the brain that gives us the same gratification as when we eat food or have sex.

Nonprofits are the intermediaries between generosity and social change.

ANYONE WHO GIVES ANYTHING—TIME, MONEY, EXPERIENCE, SKILLS, AND NETWORKS—IN ANY AMOUNT, TO CREATE A BETTER WORLD.

Actively deciding to give to causes that move you deeply is far more fulfilling than the momentary gratification derived from signing a check and mailing it to a nonprofit about which you know little more than what's on the brochure they sent you.

When I look at founders and CEOs like Mark Zuckerberg at Facebook and Brian Chesky at Airbnb and Sebastian Thrun at Udacity, these are companies that are creating extraordinary social good and extraordinary economic and educational empowerment, all within with context of a for-profit model.

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.

We’re seeing that business models and philanthropic models are not mutually exclusive.