If you want to sustain excellence over a long time, you'd better come up with a system that works well. Anyone can sprint for a little while, but you can't sprint for forty years.

It's exciting to see how fast your kids learn and grow. I'm not too worried about them, particularly the ones who like to break rules and don't follow instructions; those are the ones that will do just fine because they know what's important to them.

I'm a big believer in online communities and in user-generated content.

With the understanding that you will face tough times and amazing experiences, you must also commit to the adventure. Just have faith in the skills and the knowledge you've been blessed with and go.

Ideas are commodity. Execution of them is not.

Don’t be afraid to fail. Get out there and experiment and learn and fail and get a rate based on the experiences you have. Go for it and when you go for it you’ll learn what you’re capable of, what the potential is, where the opportunities are, but you can’t be afraid to fail because that’s when you learn.

I have no doubt that in the future, wearable devices like Fitbit will know my blood pressure, hydration levels and blood sugar levels as well. All of this data has the potential to transform modern medicine and create a whole new era of personalized care.