What makes the Mona Lisa — or any piece of art — successful? Sergio Velayosf/Flickr hide caption

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Good Art Is Popular Because It's Good. Right?

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As Execution Drugs Run Dry, Attention Turns To Source Of Shortage

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'Bluish' Light May Help Alzheimer's Patients Find Bearings

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What Is The Psychological Effect Of Naming Storms?

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Floods or Family Conflict? Bad Dreams Differ By Gender

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A view of Venus, black dot at top center, passing in front of the sun during a transit in 2012. A quarter of Americans questioned failed to answer correctly the most basic questions on astronomy. AP hide caption

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Psychologist Dan Gilbert speaking at TED. Asa Mathat/TED hide caption

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How Does Misfortune Affect Long-Term Happiness?

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Brother David Steindl-Rast says taking even just a moment to be grateful will make you happy. James Duncan Davidson/TED hide caption

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What Does It Take To Be Grateful?

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Graham Hill says we need to declutter our lives. James Duncan Davidson/TED hide caption

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Does Less Stuff Mean More Happiness?

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