The inability to delegate is one of the biggest problems I see with managers at all levels.

Every artist is unreasonable, because he or she is doing something that hasn't been done before.

Without a doubt, stem cell research will lead to the dramatic improvement in the human condition and will benefit millions of people.

I've never been one who enjoys maintaining the status quo. I'm always pushing for new ideas, whether it's in business or philanthropy.

Oprah Winfrey's global influence is unparalleled. Not only has her generosity and firm belief that education is the key to a better life benefited countless women and children around the world, but her example has also inspired millions of people to give back in ways big and small.

Managers are responsible for setting workplace policies under which teachers can succeed. Managers are responsible for negotiating contracts that create the conditions under which teachers can succeed.

I don't see myself as a great discoverer of artists, like Charles Saatchi.