Last modified: 19-Jun-18.

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I've found category theory to be an exciting, dynamic,
and rather mind-bending discipline.
When I first began studying it, though, it had a tragic shortcoming:
unlike artificial intelligence, category theory didn't have any
koans.
So in late 1998, I did my clumsy best to correct this by writing the following.
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Mac Lane constructed an adjunction between mathematics and religion. Mac Lane then asked the student, "Does category theory have Buddha?"

The student was enlightened.