One way for investors to protect themselves from a rapid change in the price of a stock is to use a limit order rather than a market order.

I think that the failures of Enron and WorldCom and other companies are partially failures of investors to recognize companies that are selling for a thousand times nothing, but chances are they may be worth only that.

Over the past two decades, we have clearly seen an erosion of ethical values.

I think we have got to start thinking about banding together in terms of interested groups.

We should never lose sight of the underlying essence of a market-a place where buyers and sellers come together. Every other feature-whether crafted by tradition or technology-exists only to serve that primary purpose.

Another misconception is that an order is canceled when you hit 'cancel' on your computer. But, the fact is it's canceled only when the market gets the cancellation.

Investors should start with a view of skepticism. They should become intellectual investors rather than emotional investors. They should be careful, and they should be skeptical.