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.

I could trade without knowing the name of the market.

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.

Trade small because thats when you are as bad as you are ever going to be. Learn from your mistakes.

When things aren't going right, don't push, don't press.

You have to minimize your losses and try to preserve capital for those very few instances where you can make a lot in a very short period of time. What you can't afford to do is throw away your capital on suboptimal trades.

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