Imagine a bull and a sheep harnessed together at the same yoke. What would happen? The most likely thing would be utter chaos as they struggle to separate and go off in their own directions. The plough would slice dangerously about behind them, no furrow would be straight and in the end, the weaker animal would be trampled. This is the scenario evoked by Anselm on the day he was, controversially, made Archbishop of Canterbury. ""You are trying to...