The Unquiet Mind

"People need depth, and depth means the possibility of unhappiness and frustration and sometimes torment — though hopefully not madness." -- Oliver Sacks

We've all had that moment. The moment where you might see or hear something and you wonder: Am I going crazy? In this hour, TED speakers share their experiences straddling that line between madness and sanity — and question if we're all in the gray area between the two.

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