With any new medium, the full power is only unearthed with experimentation.

When you raise a child, you don't sit down and take all the rules of life, write them into a big catalog, and start reading the child all these individual rules from A to Z. When we raise a child, a lot of what we do is let the child experiment and guide the experimentation. The child basically has to process his own data and learn from experience.

The biggest invention of modern time is the book. The book is a digital medium; book text is written in a different form and replicable. What it really does is it allows us to replicate cultural information, scientific technology, and information out of the human brain.

Even as a college professor at Carnegie Mellon and Stanford, I saw myself as an entrepreneur, and I went out, took risks, and tried to invent new things, such as participating in the DARPA Grand Challenge and working on self-driving cars.

People complain about the rich-and-poor divide. It's crazy, no doubt about it. But what gets me is that today, a billionaire or head of state on their smartphone has the same direct access to information as a homeless person has on a smartphone - or a person in Bangladesh or Papua New Guinea.

Obviously, a lot of non-profits live on donations, and that's a wonderful thing. But higher education can't exist on donations only because, if that were the case, we would have a hard time paying teachers adequate salaries.