John Tillson’s Children, Religion and the Ethics of Influence develops and deploys the ‘epistemic criterion’ for deciding whether teachers should promote belief in particular propositions. He defends that criterion by arguing that it promotes human well-being and enables individuals to fulfil their duty to pursue the truth. In this article I draw on John Rawls’ conception of political liberalism to suggest that the epistemic criterion is an inappropriate basis for the political community’s shaping of children’s beliefs.