Divini Illius Magistri §42

⁴² These rights have been conferred upon civil society by the Author of nature Himself, not by title of fatherhood, as in the case of the Church and of the family, but in virtue of the authority which it possesses to promote the common temporal welfare, which is precisely the purpose of its existence. Consequently education cannot pertain to civil society in the same way in which it pertains to the Church and to the family, but in a different way corresponding to its own particular end and object.