Forsake search for needles that are so very small in haystacks that are so very large.

There is something in people; you might even call it a little bit of a gambling instinct… I tell people investing should be dull. It shouldn't be exciting. Investing should be more like watching paint dry or watching grass grow. If you want excitement, take $800 and go to Las Vegas.

What we know about the global financial crisis is that we don't know very much.

To prove that Wall Street is an early omen of movements still to come in GNP, commentators quote economic studies alleging that market downturns predicted four out of the last five recessions. That is an understatement. Wall Street indexes predicted nine out of the last five recessions! And its mistakes were beauties.

Two factors explain our success. One, MIT's renaissance after World War II as a federally supported research resource. Two, the mathematical revolution in macro- and micro-economic theory and statistics. This was overdue and inevitable, MIT was the logical place for it to flourish.

Man does not live by GNP alone.

I'm not sure most of the people that get caught up in the middle of a bubble can be described as irrational. It seems pretty rational to buy a house and flip it in the next few weeks at a profit when that's been happening for along time.