"The prevailing wisdom is that markets are always right. I take the opposite position. I assume that markets are always wrong."

Next Quote

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.

— Richard Dennis