It is normal for us to think that we are better than others, that we are right and they are wrong, that our needs are more important than theirs, that other people ought to change and become more like us, even though they never could be quite as good as us.
We wouldn't want to admit we feel that way, but those are normal human attitudes toward other people. If we will be honest, we will recognize some of those tendencies in ourselves.
In Mark 9:33-50, Jesus calls us to a radically different approach toward dealing with other people. He tells us not to put others down, not to let others down, not to bring others down. He tells us to look for common ground instead of focusing on differences. He tells us to find ways to get along with others and to be at peace with them.