Almost every way we make electricity today, except for the emerging renewables and nuclear, puts out CO2. And so, what we're going to have to do at a global scale, is create a new system. And so, we need energy miracles.

Microsoft is not about greed. It's about innovation and fairness.

When the PC was launched, people knew it was important.

Software innovation, like almost every other kind of innovation, requires the ability to collaborate and share ideas with other people, and to sit down and talk with customers and get their feedback and understand their needs.

When Paul Allen and I started Microsoft over 30 years ago, we had big dreams about software. We had dreams about the impact it could have.

We are not even close to finishing the basic dream of what the PC can be. 

Bitcoin is mostly about anonymous transactions, and I don't think over time that's a good way to go. I'm a huge believe in digital currency... but doing it on an anonymous basis I think that leads to some abuses, so I'm not involved in Bitcoin.

Over time, yes, countries will need to look at specific GMO products like they look at drugs today, where they don't approve them all. They look hard at the safety and the testing. And they make sure that the benefits far outweigh any of the downsides.

The typical project design time for a large company like IBM - and they keep track of this - is a little over four years.

The advance of technology is based on making it fit in so that you don't really even notice it, so it's part of everyday life.

The first rule of any technology used in a business is that automation applied to an efficient operation will magnify the efficiency. The second is that automation applied to an inefficient operation will magnify the inefficiency.

The way to be successful in the software world is to come up with breakthrough software, and so whether it's Microsoft Office or Windows, its pushing that forward. New ideas, surprising the marketplace, so good engineering and good business are one in the same.

Effective philanthropy requires a lot of time and creativity - the same kind of focus and skills that building a business requires.

It's a nice reader, but there's nothing on the iPad I look at and say, 'Oh, I wish Microsoft had done it.'

U.K. companies are in very international and very competitive markets. If you look at PC penetration in the U.K., it is very similar to the United States market.

There is a difference between what technology enables and what historical business practices enable.

No one person controls Microsoft. The board and the shareholders decide whether they want to have me as CEO.

I have a nice office. I have a nice house... So I'm not denying myself some great things. I just don't happen to have expensive hobbies.

I'm not big on to-do lists. Instead, I use e-mail and desktop folders and my online calendar. So when I walk up to my desk, I can focus on the e-mails I've flagged and check the folders that are monitoring particular projects and particular blogs.

I have a company that is not Microsoft, called Corbis. Corbis is the operation that merged with Bettman Archives. It has nothing to do with Microsoft. It was intentionally done outside of Microsoft because Microsoft isn't interested.

Google's done a super good job on search; Apple's done a great job on the IPod.

Information technology and business are becoming inextricably interwoven. I don't think anybody can talk meaningfully about one without the talking about the other.

With Windows 8, Microsoft is trying to gain market share in what has been dominated by the iPad-type device. But a lot of those users are frustrated. They can't type. They can't create documents.

We are in the throes of a transition where every publication has to think of their digital strategy.