Derivatives in and of themselves are not evil. There's nothing evil about how they're traded, how they're accounted for, and how they're financed, like any other financial instrument, if done properly.

Bubbles are best identified by credit excesses, not valuation excesses. And there's no bigger credit excess than in China.

I'll always understand the Schadenfreude aspect to short-selling. I get that no one will always like it. I'm also convinced to the deepest part of my bones that short-selling plays the role of real-time financial watchdog. It's one of the few checks and balances in the market.

Increasingly, the real estate developers can't get bank loans for their project financing in China. They're now going into the Hong Kong market to raise money in the bond market at very, very high rates, as high as 15, 20 percent.

Our concerns about what we saw in Australia: an economy clearly tied to China has hitched its wagon to the tail of the tiger. In terms of the general complacency, what we heard over and over from investors and clients and potential clients is, 'yes, yes, there are some excesses, but the government will figure out a way.

What American people and what the markets want is a fair and level playing-field, where the rules are clearly elucidated, where the referees are competent, and where we know that the game is not rigged.

It's very difficult in the technology space when you have been leapfrogged to prosper again.

I've learned there's a big difference between a long-focused value investor and a good short-seller. That difference is psychological and I think it falls into the realm of behavioral finance.

People who lose money always need someone to blame.

I've seen a lot more go to zero than infinity.

The Macau casinos have a wonderful business, it's taking in money from Chinese businessmen elsewhere who send it through junky companies to casinos to gamble. The growth continues and they have basically western managers and western accounting, so we trust the numbers a little bit more.

So you know, everyone points out Greece's default record, but the history of a lot of sovereign nations is not a good one when it comes to lending them money.

Healthcare is growing now at about 10 per cent per annum in the U.S. top line, versus 3 per cent for the economy. As someone with a sharp pencil and an eye for this kind of thing, this can't last.

Dubai was a property bubble. Plain and simple. Go to Dubai and see what happened. It was... what I call it the 'Edifice complex' - it's just, we can grow by putting up lots and lots of buildings and trying to attract people to come here, stay here, and put up offices here and sooner or later, you put up too many.