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Gluttony is a cousin to greed. And being overly greedy in the market tends to lead to investment failures instead of successes.
It's much better to be goal-oriented. "People who have goals often strive to reach them," says Randy Warren, chief investment officer of Warren Financial. "Just wanting to make more money is not really a goal. That's gluttony."
"If you are goal-oriented, it will affect your investing strategy," he says. "So you may not need to shoot for the moon in terms of investment returns."