Anti-aging is an extremely under-explored field.

A conventional truth can be important - it's essential to learn elementary mathematics, for example - but it won't give you an edge. It's not a secret.

I think society is both something that's very real and very powerful, but on the whole quite problematic.

I believe we are in a world where innovation in stuff was outlawed. It was basically outlawed in the last 40 years - part of it was environmentalism, part of it was risk aversion.

Had the people who started Facebook decided to stay at Harvard, they would not have been able to build the company, and by the time they graduated in 2006, that window probably would have come and gone.

I would not describe myself as a super early adopter of consumer technology.

If you do something new, it will always look a little bit strange.

All of us have to work toward a definite future... that can motivate and inspire people to change the world.

I spend an awful lot of time just thinking about what is going on in the world and talking to people about that. It's probably one of my default social activities, just getting dinners with friends.

Great investments may look crazy but really may not be.

You don't want to just do 'me too' companies that are copying what others are doing.

In Silicon Valley, I point out that many of the more successful entrepreneurs seem to be suffering from a mild form of Asperger's where it's like you're missing the imitation, socialization gene.

The model of the U.S. economy is that we are the country that does new things.

The optimism that many felt in the 1960s over labour-saving technology is giving way to a fearful question: 'Will your labour be good for anything in the future? Or will you be replaced by a machine?'

Unsolved problems are where you'll find opportunity. Energy is one sector with extremely urgent unsolved problems.

Whereas a competitive firm must sell at the market price, a monopoly owns its market, so it can set its own prices. Since it has no competition, it produces at the quantity and price combination that maximizes its profits.

I believe that evolution is a true account of nature, but I think we should try to escape it or transcend it in our society.

One of my friends started a company in 1997, seven years before Facebook, called SocialNet. And they had all these ideas, and you could be, like, a cat, and I'd be a dog on the Internet, and we'd have this virtual reality, and we would just not be ourselves. That didn't work because reality always works better than any fake version of it.

Credentials are critical if you want to do something professional. If you want to become a doctor or lawyer or teacher or professor, there is a credentialing process. But there are a lot of other things where it's not clear they're that important.

I think it's a problem that we don't have more companies like Facebook. It shouldn't be the only company that's doing this well.

Most of 'big data' is a fraud because it is really 'dumb data.'

I think it's always good for gay people to come out, but it's also understandable why people might choose not to do so.

In a world where wealth is growing, you can get away with printing money. Doubling the debt over the next 20 years is not a problem.

I had a good experience in college, but I don't think interdisciplinary education is something that's stressed very much at all. It's generally considered to be something of a bad idea.