It's good to test yourself and develop your talents and ambitions as fully as you can and achieve greater success; but I think success is the feeling you get from a job well done, and the key thing is to do the work.

Men and machines are good at different things. People form plans and make decisions in complicated situations. We are less good at making sense of enormous amounts of data. Computers are exactly the opposite: they excel at efficient data processing but struggle to make basic judgments that would be simple for any human.

Every one of today's smartphones has thousands of times more processing power than the computers that guided astronauts to the moon.

There have been a lot of critiques of the finance industry's having possibly foisted subprime mortgages on unknowing buyers, and a lot of those kinds of arguments are even more powerful when used against college administrators who are probably in some ways engaged in equally misleading advertising.

Education is a bubble in a classic sense. To call something a bubble, it must be overpriced, and there must be an intense belief in it.

The future is limitless.

There's absolutely no bubble in technology.

Technology just means information technology.

Spiraling demand for resources of which our world contains a finite supply is the great long-term threat posed by globalisation. That is why we need new technology to relieve it.

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?'

People don't want to believe that technology is broken. Pharmaceuticals, robotics, artificial intelligence, nanotechnology - all these areas where the progress has been a lot more limited than people think. And the question is why.

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.

The next Bill Gates will not start an operating system. The next Larry Page won't start a search engine. The next Mark Zuckerberg won't start a social network company. If you are copying these people, you are not learning from them.

We live in a world in which courage is in less supply than genius.