Okay, since I made note of the sins of students, it is only fair to admit the sins of the teacher. But with so many, where to start?
1. Pride. Pontification is an easy sin. We want to be seen as wise and so we use our bully pulpit to “educate” even if we don’t have a clue what we are saying
2. Laziness. Using the same material each year and expecting it to be fresh and valuable as the day it was thought up
3. Defensiveness. Every critical statement made by students isn’t the result of their psychopathology. We screw up and ought to be able to admit it
4. Jealousy. We tear down our more prolific/famous colleagues because it makes us feel less of a failure.
Others teacher sins you can think of? Be gentle 🙂