Former Harvard President Derek Bok speaks with a young Patricia Nelson Limerick after she was appointed University Fool during her time teaching there in the 1980s. She's now CU Boulder's resident Fool.

Patricia Nelson Limerick, CU's official Fool, on why society needs humor

CU Boulder professor Patty Limerick says being a fool is a good thing -- and society could use a few more of them.

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(Photo: Courtesy of Patty Limerick)

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