It ain’t what you don’t know that gets you into trouble. It’s what you know for sure that just ain’t so.” — Mark Twain - Gary Keller

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It ain’t what you don’t know that gets you into trouble. It’s what you know for sure that just ain’t so.” — Mark Twain

English
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Alternative Names: Gary Keller
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Additional quotes by Gary Keller

Here’s what I found out: We overthink, overplan, and overanalyze our careers, our businesses, and our lives; that long hours are neither virtuous nor healthy; and that we usually succeed in spite of most of what we do, not because of it.

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You can do two things at once, but you can't focus effectively on two things at once.

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