If you are a good economist, a virtuous economist, you are reborn as a physicist. But if you are an evil, wicked economist, you are reborn as a sociologist.

I think people have to recognise that the traditional modes of authority weren't that great.

Wikipedia is a non-profit. It was either the dumbest thing I ever did or the smartest thing I ever did.

The real struggle is not between the right and the left but between the party of the thoughtful and the party of the jerks.

I'm a big advocate of freedom: freedom of speech, freedom of expression, and freedom of thought.

My original concept was to provide a free encyclopedia for every single person in the world.

You shouldn't use anything as the sole source for anything, in my view.

Simply having rules does not change the things that people want to do. You have to change incentive.

It turns out a lot of people don't get it. Wikipedia is like rock'n'roll; it's a cultural shift.

I just get up every day and do what seems like the most interesting, fun thing to do.

Social Security is a social insurance program - it is not designed to be the same thing as a 401(k).

The French, unfortunately, actually believe what they say, and that has been very destructive.

Default is not in our stars but in ourselves.

Can we break the machine that is imposing right-wing radicalism on the United States? The scariest part is that the media is part of that machine.

Bad ideas flourish because they are in the interest of powerful groups.

The habit of disguising ideology as expertise has created a deficit of legitimacy.

The public has no idea that the deficit has been falling like a stone.

When depression economics prevails, the usual rules of economic policy no longer apply: virtue becomes vice, caution is risky and prudence is folly.

If Europe’s example is any guide, here are the two secrets of coping with expensive oil: own fuel-efficient cars, and don’t drive them too much.