Interesting

From the Yale's math department's "Tips for Teachers" web page:

It is dangerous show your students that you are wasting your precious time teaching these ignorant fools.

Note the choice of words. It doesn't say "have your students think that"; it says "show."

Repeat to your students, colleagues and to yourself that you like to teach.

And maybe you will even start to believe it.

No wonder the really high-end departments have such a reputation for bad teaching.