Instagram is great for us because it's encouraging people to shoot more stuff. Some of those snappers will become professional, and they may choose to sell their photos through us.

Working with limited resources is an excellent way to hone skills that will serve you well for the rest of your career. You will prioritize profitability from the start.

I found it very helpful not to do the venture round. Instead, I started with very little money, a few thousand dollars, and I did every job myself. I was the first photographer. I was the first customer service rep. I was the first online marketing person.

I think, as an entrepreneur, you have to see the unlimited amount of potential but concentrate on your day and just keep building.

Our children will outwit us if they want; for when it comes to technology, they hold the higher ground. Unlike other tools passed carefully and ceremonially from one generation to the next - the sharp scissors, the car keys - this is one they understand better than we do.

In addition to encouraging failure, I would also encourage companies to broadly create a culture of innovation. That should mean more than just technology and invention; it should mean something millennials know well: Ingenuity.

A digital currency issued by a central bank would be a global target for cyber attacks, cyber counterfeiting, and cyber theft.

There was a lot of hype about social media in President Obama's first campaign. It was important, but it wasn't as important as I think people let on.