If we're in a bubble, it's the weirdest bubble I've ever seen, where everybody hates everything.

The good news about building a company during times like this is that the companies that do succeed are going to be extremely strong and resilient.

I don't waste time being depressed.

The 2 hardest things you'll have to do when running a company are recruiting and talking people out of leaving.

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.

Companies in every industry need to assume that a software revolution is coming.

Over the next 10 years, I expect many more industries to be disrupted by software, with new world-beating Silicon Valley companies doing the disruption in more cases than not.