When you have a position, you put it on for a reason, and you've got to keep it until the reason no longer exists.

I always say that you could publish trading rules in the newspaper and no one would follow them. The key is consistency and discipline. Almost anybody can make up a list of rules that are 80 percent as good as what we taught people. What they couldn’t do is give them the confidence to stick to those rules even when things are going bad.

Trading decisions should be made as unemotionally as possible.

There is another point that I think is as important: You should expect the unexpected in this business; expect the extreme. Don’t think in terms of boundaries that limit what the market might do. If there is any lesson I have learned in the nearly twenty years that I’ve been in this business, it is that the unexpected and the impossible happen every now and then

Trading has taught me not to take the conventional wisdom for granted. What money I made in trading is testimony to the fact that the majority is wrong a lot of the time. The vast majority is wrong even more of the time. I've learned that markets, which are often just mad crowds, are often irrational; when emotionally overwrought, they're almost always wrong.

You should always have a worst case point. The only choice should be to get out quicker.

I could trade without knowing the name of the market.