When I offered to read a paper on this subject, I had a particular hypothesis in mind. I thought—perhaps it would be more honest to say, I hoped—it would be possible to show that, during a period roughly contemporaneous with the Reformation, the practice of the sacrament of penance in the traditional church had undergone a change which was important in itself and of general historical interest. The change, I thought, could roughly be described as a shift from the social to the personal. To be more precise, I thought it possible that, for the average layman, and notably for the average rural layman in the pre-reformation church, the emphasis of the sacrament lay in its providing part of a machinery for the regulation and resolution of offences and conflicts otherwise likely to disturb the peace of a community. The effect of the Counter-Reformation (or whatever one calls it) was, I suspected, to shift the emphasis away from the field of objective social relations and into a field of interiorized discipline for the individual. The hypothesis may be thought an arbitrary one: we can but see. I think it will be admitted that, supposing it turned out to be correct, we should have learnt something worth knowing about the difference between the medieval and the counter-reformation church, and something about the difference between pre- and post-reformation European society. If if did not turn out to be correct, we might nevertheless expect to pick up some useful knowledge about something which is scarcely a staple of current historical discourse, though it threatens to become so.