On Saturday, investors on Wall Street will celebrate the 10-year anniversary of the longest bull market in U.S. history.

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In an interview with FOX Business’ Connell McShane, Forbes Media chairman Steve Forbes explained how millions of people missed out on the bull market’s 10-year streak.

“Precisely because they let emotions rule,” Forbes said on Thursday. He went on to say that the real axing in the stock market is that, “if you feel good, don’t; if you feel bad, do it. In terms of investing, emotions are your enemy.”

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