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Why we need to get young adults out of their comfort zone

Why we need to get young adults out of their comfort zone

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News Wrap: U.S. marks 17th anniversary of 9/11 attacks

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How Betsy DeVos wants to defang rules for-profit colleges

How Betsy DeVos wants to defang rules for-profit colleges

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17 years on, is Afghanistan making progress toward peace?

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Flying into hurricanes, scientists search for more certainty

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'Now is the time' to evacuate Hurricane Florence danger

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Kavanaugh and the abortion debate factor in key Senate race

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FDA wants e-cigarette makers to extinguish use by kids

FDA wants e-cigarette makers to extinguish use by kids

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9:40
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PBS News Hour

'If you think you know everything, you can't learn anything'

When students come into Dan Levitan's lab, he spends most of his time trying to teach them that they don't know everything they think they do. "Knowledge can only be created in an environment where we're open to the possibility that we're wrong," he says. Levitan shares his humble opinion on the best way to help students.
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