And contempt in a bad disagreement can be more than just not liking somebody's point of view-their perspective on something-it could be thinking someone is a lesser human being.
There can be ways of speaking without shouting, of saying 'no' without being alarming, of standing up for ourselves without coming across as entitled or unworthy.
" Monsieur Roger, here is a pupil whom I recommend to your care; he'll be in the second. If his work and conduct are satisfactory, he will go into one of the upper classes, as becomes his age" .