Augustine’s realism has, however, been said to protect bad regimes. It should be recalled, in this context, of course, that one of the functions of Aristotle’s description of good and bad regimes, was to indicate that a change in regime will not necessarily mean a change for the better. But change is justified only if it is a change for the better. For the most part, Augustine advises citizens and Christians to obey the Emperor, as St. Paul himself recommended (Romans, 13:1-7). By failing to seek a radical change, Augustine is said to contribute to keeping the worst regime in power. But Augustine’s strategy, as that of Paul, was to realize that changes of regime are often better achieved by working to save and foster what is good even in a bad or tyrannical regime.