A few small changes in your DNA can turn your eyes blue, make you lactose intolerant or put some curl in your hair.

The challenge in a startup is you hit a lot of turbulence, and you want people who understand that it's just turbulence and not a crisis.

My perfect weekend is going for a walk with my family in the park. I don't think there's anything better.

I do let the kids play on devices when we eat out - it's better than being thrown out of a restaurant.

You are not just about death and disease.

Big data is going to make us all healthier.

Did you know that there was a study in 1961 that found that 90 percent of physicians wouldn't tell you if you were diagnosed with cancer?

As a parent, the most responsible thing I can do is get as much information about my children as possible so I can then think through how I can make them as healthy as possible.

The paternalism of the medical industry is insane.

I think life is pretty awesome.

There's enough data showing that the fitter you are, the better you eat, the more likely you are to stay healthy longer.

It's up to all of us, the consumers, to take charge of our health. It's almost like voting. It's your responsibility.

If health care is a $2.7 trillion industry, and a huge percentage is paid by the government, then you have to be involved in politics to make a difference.

Why should I need a prescription to spit into a vial and get my DNA read? Why can't I get my own blood drawn without a doctor's permission? It's my blood.

I believe that we all have freedom to shape our own life and the world around us.

I want the world's data accessible.

The pharma industry is one of the few industries that comes up every year and brags about how much worse they got - like, now it costs $2 billion to make a drug, and it was a billion 5 years ago.

I think there's a lot of misunderstanding about genetic information and what you can and cannot learn.

Part of the beauty of Silicon Valley is that people generally encourage you to think crazy. It's the hypothesis that there's nothing sacred that can't be changed.

I think it is absolutely crazy in this day and age that I have to go through a trial and error method to see if my child is allergic to an antibiotic or peanuts. I should just know.

I've come to the conclusion that you shouldn't have to see a genetic counselor. It should be a choice.

I have always been interested in health care and doing something that is dramatic.

I spend a lot of my spare time with my family. My sisters, parents, and in-laws all live nearby.

I don't necessarily want my physician making all my decisions.

We all want our genetic information. Why would you not want genetic information?

April 25th is DNA Day. I know, you probably had no idea.

Most important about what Ashoka is doing is that they make people believe that change is possible. That belief can go viral.

There's going to be space travel at some point.

Every couple of weeks, someone writes in and says, '23andMe saved my life.'

We have been trained not to think about our health care until there's a problem.

I think there's a lot of misunderstanding about genetic information and what you can and cannot learn. One of the things we try to do is educate individuals that knowing information is empowering.

I'm not going to change; I'm very stubborn in this way. I am what I am.

There's a whole group of people who are 100-plus and have no disease. Why?

For people who want to be proactive about their health, there is a lot of information that we can provide. If you are going to have children, I think you have a responsibility to know if you are carrying anything. A lot of people tend to do the testing once they are pregnant.

It doesn't matter how rich or poor you are: when you're sick, you want the exact same thing.

I usually start my day when my kids wake up.

I have mothers with small children come to me and say, 'You found that I had early breast cancer - because of you, I don't have cancer.' You've just prevented that person from dying early, and to prevent an early, unnecessary death is incredibly meaningful.

It's worth knowing more about the complicated environmental and genetic factors that could explain why traumatic brain injuries lead to long-term disabilities in some people and not in others.

A solid foundation in genetics is increasingly important for everyone.

We care a lot more about not having the disease than treating it.

My divorce wasn't fun.

There's a beauty in being unrealistic.

It's not just professional athletes and soldiers who are at risk from traumatic brain injury. More than 1.7 million people a year sustain a traumatic brain injury, and about 50,000 of them die each year, according the Centers for Disease Control. There are both emotional and financial costs from these injuries.

We don't have enough data about how lifestyle decisions impact our health.

The reality is that the only way change comes is when you lead by example.

There should be choice in healthcare.

I had a very unusual childhood in that I grew up on the Stanford campus and I never moved.

You don't do new things and try to change the system without generating debate.

I think being on a constraint with money makes you much more creative.