Every generation inherits unfinished lessons from people who thought they had finished learning them.

The people who taught you were still learning, and some of what they handed on was provisional even where they presented it as settled. That means every generation receives a mix of the durable and the unfinished, and part of the work is sorting one from the other rather than assuming it all arrived complete.

Take something you were taught firmly and test it against your own experience. Keep what holds. Revising an inherited lesson is not disrespect, it is the continuation of the same work.