When you're dealing with machines or anything that you build, it either works or it doesn't, no matter how good of a salesman you are.

My own theory is that we are in the middle of a dramatic and broad technological and economic shift in which software companies are poised to take over large swathes of the economy

Ten to 20 years out, driving your car will be viewed as equivalently immoral as smoking cigarettes around other people is today.

Innovation accelerates and compounds.

It was a joke, okay? If we thought it would actually be used, we wouldn't have written it!

Start-ups should be based on radical ideas. There should be a high failure rate for start-ups, because if there isn't their ideas aren't bold enough.

I think that every technology company that's more than 20 years old will break up