"Expectations are a form of first-class truth: If people believe it, it's true."

"My experience of malaria was just taking anti-malarials, which give you strange dreams, because I don't want to get malaria."

"There's no such thing as going to a soapbox and saying, 'The government's corrupt,' and not having the intelligence service see your face. In the digital world, that can be done."

"The future of advertising is the Internet."

"I actually thought that it would be a little confusing during the same period of your life to be in one meeting when you're trying to make money, and then go to another meeting where you're giving it away."

"If you give people tools, and they use their natural abilities and their curiosity, they will develop things in ways that will surprise you very much beyond what you might have expected."

"I've always been interested in science - one of my favourite books is James Watson's 'Molecular Biology of the Gene.'"

"If you think your teacher is tough, wait until you get a boss. He doesn't have tenure."

"Since when has the world of computer software design been about what people want? This is a simple question of evolution. The day is quickly coming when every knee will bow down to a silicon fist, and you will all beg your binary gods for mercy."

"In this business, by the time you realize you're in trouble, it's too late to save yourself. Unless you're running scared all the time, you're gone."

"Be nice to nerds. Chances are you'll end up working for one."

"If all my bridge coach ever told me was that I was 'satisfactory,' I would have no hope of ever getting better. How would I know who was the best? How would I know what I was doing differently?"

"My mom was on the United Way group that decides how to allocate the money and looks at all the different charities and makes the very hard decisions about where that pool of funds is going to go."

"In terms of doing things I take a fairly scientific approach to why things happen and how they happen. I don't know if there's a god or not..."

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

"I have a particular relationship with Vinod Khosla because he's got a lot of very interesting science-based energy startups."

"The Internet is becoming the town square for the global village of tomorrow."

"I'm sorry that we have to have a Washington presence. We thrived during our first 16 years without any of this. I never made a political visit to Washington and we had no people here. It wasn't on our radar screen. We were just making great software."

"I really had a lot of dreams when I was a kid, and I think a great deal of that grew out of the fact that I had a chance to read a lot."

"Steve Jobs' ability to focus in on a few things that count, get people who get user interface right, and market things as revolutionary are amazing things."

"Your most unhappy customers are your greatest source of learning."

"We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction."

"Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important."

"Connectivity enables transparency for better government, education, and health."

"Before you were born, your parents weren't as boring as they are now. They got that way from paying your bills, cleaning your clothes and listening to you talk about how cool you thought you were. So before you save the rain forest from the parasites of your parent's generation, try delousing the closet in your own room."

"Digital technology has several features that can make it much easier for teachers to pay special attention to all their students."

"My mom and my dad were both very sociable, meeting lots of interesting people."

"I think it's fair to say that personal computers have become the most empowering tool we've ever created. They're tools of communication, they're tools of creativity, and they can be shaped by their user."

"Teaching's hard! You need different skills: positive reinforcement, keeping students from getting bored, commanding their attention in a certain way."

"Money has always been in politics. And I'm not sure you'd want money to be completely out of politics."

"Flying cars are not a very efficient way to move things from one point to another."

"In order to deal with all the medical cost demands and other challenges in the U.S., as we look to raise that revenue, the rich will have to pay slightly more. That's quite clear."

"Me and my dad are the biggest promoters of an estate tax in the US. It's not a popular position."

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

"Like almost everyone who uses e-mail, I receive a ton of spam every day. Much of it offers to help me get out of debt or get rich quick. It would be funny if it weren't so exciting."

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

"Measuring programming progress by lines of code is like measuring aircraft building progress by weight."

"In inner-city, low-income communities of color, there's such a high correlation in terms of educational quality and success."

"The PC has improved the world in just about every area you can think of. Amazing developments in communications, collaboration and efficiencies. New kinds of entertainment and social media. Access to information and the ability to give a voice people who would never have been heard."

"People are always coming up to me and saying, 'I heard your dad's speech, and it's really great.' And they'll mention some place I didn't even know my dad was going to."

"Research shows that there is only half as much variation in student achievement between schools as there is among classrooms in the same school. If you want your child to get the best education possible, it is actually more important to get him assigned to a great teacher than to a great school."

"The world today has 6.8 billion people. That's heading up to about nine billion. Now if we do a really great job on new vaccines, health care & reproductive health services, we could LOWER that by perhaps 10 or 15 percent."

"It's fine to celebrate success but it is more important to heed the lessons of failure."

"The most amazing philanthropists are people who are actually making a significant sacrifice."

"I think the positive competition between states in India is one of the most positive dynamics that the country has."

"Technology is unlocking the innate compassion we have for our fellow human beings."

"In poor countries, we still need better ways to measure the effectiveness of the many government workers providing health services. They are the crucial link bringing tools such as vaccines and education to the people who need them most. How well trained are they? Are they showing up to work?"

"Intellectual property has the shelf life of a banana."

"The worst pandemic in modern history was the Spanish flu of 1918, which killed tens of millions of people. Today, with how interconnected the world is, it would spread faster."

"The U.S. couldn't even get rid of Saddam Hussein. And we all know that the EU is just a passing fad. They'll be killing each other again in less than a year. I'm sick to death of all these fascist lawsuits."