“Education: that which reveals to the wise, and conceals from the stupid, the vast limits of their knowledge.”

–Mark Twain

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Robert Conquest reminds of what can happen in institutions as conventions harden, mediocrity and rule-following abounds, and where incentives matter:

“Those teach who can’t do” runs the dictum,

But for some even that’s out of reach:

They can’t even teach—so they’ve picked ’em

To teach other people to teach.

Then alas for the next generation,

For the pots fairly crackle with thorn.

Where psychology meets education

A terrible bullshit is born.’

More here.