These are the truisms, what Jacques Ellul calls the Commonplaces of the modern political world.

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And then there are the Ten Truisms of Selling Invisibly.

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Jeffrey Hirsch, editor of Stock Trader's Almanac Investor, is an unflappable propagator of market truisms, and his father, Yale Hirsch, discovered the "best six months" strategy in 1986.

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As we enter the New Year in 2013, I am reminded by certain truisms that may offer food for thought as we navigate the investment universe in the year ahead.

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Some investing truisms are pure baloney.

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