In the face of differences about how sex should be taught to young persons, and consistent with a liberal principle of neutrality, educationalists can adopt one of two strategies. The ‘retreat to basics’ consists in teaching only a basic agreed code of sexual conduct, or a set of agreed principles of sexual morality. The ‘conjunctive–disjunctive’ strategy consists in teaching the facts of sexual activity together with the various possible evaluations of these facts. Both strategies are beset with significant and insuperable difficulties. Perhaps one should presume only to teach sex in a way that maximises the foundational liberal ideal of autonomy.