When there's an ache, you want to be like aspirin, not vitamins. Aspirin solves a very particular problem someone has, whereas vitamins are a general "nice to have" market.

Taking smart risks can be very gratifying.

I'm on the Facebook board now. Little did they know that I thought Facebook was really stupid when I first heard about it back in 2005.

I think there will be 20 years of evolution from linear broadcast to internet television.

Human entertainment will have moved on to something new. Then the ultimate challenge for us is, can we figure out what that new form of entertainment is?

When we think about online learning, it's such 'early days.' Bill Gates is a wildly smart insightful guy. Yet, even a guy as smart and insightful as that, 30 years ago can say things like,'Who's every going to need more than 640K of memory?'

If the Starbucks secret is a smile when you get your latte... ours is that the Web site adapts to the individual's taste.