If you have a business model that relies on customers being misinformed, you better start working on changing your business model.

Teachers, who are really good create that environment where you can be very satisfied by the process of learning. If you do something and you find it a very satisfying experience then you want to do more of it. The great teachers somehow convey in their very attitude and their words and their actions and everything they do that this is an important thing you're learning. You end up wanting to do more of it and more of it and more of it. That's a real talent some people have to convey the importance of that and to reflect it back to the students.

I don't know about you, but most of my exchanges with cashiers are not that meaningful.

The common question that gets asked in business is, why? That’s a good question, but an equally valid question is, why not?

I love my life. I love being an inventor.

On the Internet, companies are scale businesses, characterized by high fixed costs and relatively low variable costs. You can be two sizes: You can be big, or you can be small. It's very hard to be medium. A lot of medium-sized companies had the financing rug pulled out from under them before they could get big.

My view is there's no bad time to innovate.