Stop sketching and start building.

Stop sketching and start building.

I keep a notebook in my pocket, and I write down all the stuff we could ever do with Foursquare.

What we're starting to see is that the best apps tend to be the simplest, the easiest to use and the fastest to use.

If there's something you want to build, but the tech isn't there yet, just find the closest possible way to make it happen.

I learned early on not to feel badly about reaching out for help, and not to feel embarrassed about saying that you're in over your head.

Building a product is easy. But building the company that builds the product is hard.