Rabbi Simenon ben Eleazar says: I shall tell a parable. To what may this be likened?: A king built a large palace and decorated it, but a tannery pipe led through it and emptied at it's doorway.
Says every passerby: "How handsome and magnificent this palace would be if it were not for the tannery pipe coming through it!"
So too is man. If, with a foul stream issuing from his bowels, he exalts himself over other creatures, then how much the more he would exalt himself over other creatures if a stream of precious oil, balsam, or ointment issued from him!