Design is not just what it looks like and feels like. Design is how it works.
It’s really hard to design products by focus groups. A lot of times, people don’t know what they want until you show it to them.
You can’t just ask customers what they want and then try to give that to them. By the time you get it built, they’ll want something new.
Sometimes life is going to hit you in the head with a brick. Don’t lose faith.
I’m convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance.