in philosophy there is the ‘principle of charity’, an old rule that means interpreting other people’s statements in the most reasonable and inoffensive way, and not to make second guesses about people’s real intentions. Christian-run colleges have often made this an important starting point because it makes the smooth running of society much easier and without it debating turns poisonous. In contrast, PC is the ‘principle of injury’, a key theme being to interpret conservative opponents’ views in the worst possible light, and to look for ulterior motives.

