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The core of Wikipedia is something people really believe in. That is too valuable for the world to screw it up.

People take issue with individual aspects of Wikipedia all the time. But it's kind of hard to hate the general idea of a free encyclopedia. It's like hating kittens.

Wikipedia is just an incredible thing. It is fact-encirclingly huge, and it is idiosyncratic, careful, messy, funny, shocking and full of simmering controversies - and it is free, and it is fast.

Wikipedia was a big help for science, especially science communication, and it shows no sign of diminishing in importance.

I have worked really hard to defy categorization, to break down a taxonomy whenever it comes my way.

Wikipedia, every day, is tens of thousands of people inputting information, and every day millions of people withdrawing that information. It's a perfect image for the fundamental point that no one of us is as smart as all of us thinking together.

Encyclopedias are finished. All encyclopedias combined, including the redoubtable Britannica, have already been surpassed by the exercise in groupthink known as Wikipedia.

Wikipedia is so dangerous.

I think it's important never to look yourself up on Wikipedia. I think the temptation to correct any interesting factual errors would be too much.

Wikipedia is kind of extreme, where a very, very small group of people contribute pretty much everything.