On Haskell

Monads —"the fatal disease"— belong more to the problem set than to the solution set.

It is practically impossible to teach good category theory to students that have had a prior exposure to Haskell: as potential category theorists they are mentally mutilated beyond hope of regeneration.

The use of Haskell cripples the mind; its teaching should, therefore, be regarded as a criminal offence.

Monads in CT are useless anyway. You should be thankful we found a way to make your impenetrable academic bullshite useful.