Many people recoil at the sight of vultures eating the dead carcass of another animal. Yet vultures perform a most helpful task. They are scavengers that are merely looking for something to eat and although their diet might not be one we would want, it is necessary in the great flow of things. I wondered how they could each such things and not be affected. The story is that they have incredible types of stomach acids that are able to allow them to eat carrion without looking for the bottle of Pepto-Bismol later. There are times when we ourselves might need to be a scavenger of a different sort; finding things and ways that work, and discarding those that do not. The teachings of the Dao should never be discarded.