Bad attitude is deleterious to your education because it will prevent you from being an active learner and listener.
It is important to do this because if we have logical fallacies in our arguments, our arguments are less likely to be true, and won't convince anyone to our side who can see our fallacies. If we have logical fallacies, instead of convincing others of truth, we try to pass off a lie, and lie to ourselves.
Answer:
Unapproachable is an adverb.
Morrie wants teacher to the last printed on his tombstone
