This is a comment that I hear quite often: "I don't need sermons. The Bible simply teaches us not to be assholes. So if we just learn to be nice, we will be good Christians. I don't need the pastor spending a long time every week telling me that."
Well, that may be true. Unfortunately, such a way of reductionism is true for everything as well. So the next time I hear such a comment, I'll say, "That's exactly right! This is How To Do It"