People who lose money always need someone to blame.

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.

If you're a short-seller, that's a cacophony of negative reinforcement. You're basically told that you're wrong in every way imaginable every day. It takes a certain type of individual to drown that noise and negative reinforcement out and to remind oneself that their work is accurate and what they're hearing is not.

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.

What we define as a bubble is any kind of debt-fueled asset inflation where the cash flow generated by the asset itself - a rental property, office building, condo - does not cover the debt incurred to buy the asset. So you depend on a greater fool, if you will, to come in and buy at a higher price.

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.