I consider myself an inventor first and an entrepreneur second. In real life, my hero is Thomas Edison. He was a great inventor, but also an outstanding entrepreneur who was able to sell his inventions to the masses. He didn't just develop the light bulb; he invented the entire electric grid and power distribution system.
I always knew I wanted to be a technologist, so I went to Duke and got a degree in computer science and electrical engineering. Really, I thought my goal in life was to be an inventor, a problem solver, so I thought I needed a Ph.D. to be good at inventions, but it turns out that you don't.
I actually don't invest in anything that is social, mobile, deals or ad networks simply because those are areas where there are so many players and so many other smart people in the space, I feel like I don't have a competitive advantage. So I tend to go after things that are e-commerce, like healthcare.
The way you dress or the car you drive or what you spend is to impress other people with how, I guess, successful and rich you are. But you're not, and you shouldn't, and who gives a damn what other people think anyway. So, that mentality, I think, is very destructive.
Whenever I see a tree that is climbable, it must be climbed. Sometimes when I'm on a run, I'll just run up a tree, jump on a branch and swing off. My favorite tree, in Saratoga, gets me a good 75 feet up.
I wanted to build a tool for my generation: people 20 to 40 who don't want to spend time balancing a checkbook or checking multiple financial institutions' websites. Mint does just that, giving comprehensive, quick insights into a user's finances from their computer, mobile phone and/or tablet.
In the first three years of Mint, from when it was founded to when it was sold, I can honestly say that in a sustainable way, I couldn't have worked any harder on it.
Tell your idea to whomever will listen, and you'll get valuable market feedback before writing a single line of code.
I have always thought of myself as an inventor first and foremost. An engineer. An entrepreneur. In that order. I never thought of myself as an employee. But my first jobs as an adult were as an employee: at IBM, and then at my first start-up.
I've been spending quite a bit of time in Canada, New Zealand, Australia, and the U.K. as Mint is expanding globally, and I'm personally doing much of the research and business deals to make them happen.
One of my top tips for aspiring entrepreneurs: Tell everyone you know about your idea. This runs contrary to the instinct that most people have, because they're afraid someone is going to 'steal my ideal.' Ideas alone are worth very little; it's in the execution and market feedback that companies are made.
I've actually started a number of businesses in my career. So I'm 28 currently, but when I was about 16, I started building Websites, and that's how I put myself through school. I went to Duke with a degree in electrical engineering, computer science, computer engineering, and then to Princeton.
The start-up life kept me busy and surfaced the problem of not being able to stay on top of my personal finances, which led me to invent Mint.com. I was working 80-hour weeks, and had done enough preliminary work and research to know I had a big idea: To make money management effortless and automated.
After building most of Mint.com's prototype by myself, I talked to anyone and everyone I knew about Mint. It's counter-intuitive, because you might fear someone will steal your idea, but it's the only way to make connections, be sure you're on the right track, and provide a solution for an audience broader than yourself.
If you look on Amazon - if you do a search for personal finance, there are literally 20,000 books written on personal finance, and there's no real reason for it. I mean, personal finance is pretty simple.
If you pay your credit card off every month, get a rewards card. One that gives you airline miles or that will give you 1 percent cash back at least on every purchase.
I'm typically a 'just drink water' kind of guy. I was a bodybuilder in high school, so I used to - food to me was, 'there are this many grams of carbohydrates and proteins, and I need these micronutrients in order to grow and be fit,' and I ate in order to live and not live in order to eat, and I think most people are the opposite.
If you think about photo sharing sites, the mobile photo sharing and social, there's no competitive advantage, there's no obvious business model, so I never play with anything like that. I avoid it like the plague.
When I was 8 or 9, I started using bulletin board systems, which was the precursor to the Internet, where you'd dial into... a shared system and shared computers. I've had an email address since the late '80s, when I was 8 or 9 years old, and then I got on the Internet in '93 when it was first starting out.
You don't start a company because you want to be an entrepreneur or the fame and glory that comes along with it. You become an entrepreneur, and you create a company to solve a real problem. And by real problem, I mean a problem that is going to exist down the line.
