You must learn to look at people who are angry with you straight in the eye without getting angry back. When children see their parents treating them this way, they then recognize the parents' authority. It speaks louder than words. Their new respect for the parents is as good for them as it is for the parents. It never works to demand respect of children. It must be given willingly as a result of strength of good character in the parents, which is manifested by their non-reaction to stress in the children.
