27 These and similar admonitions, most wise and holy, given by Anselm even to the lords and kings of the world, may well be repeated by the pastors and princes of the Church, as the natural defenders of truth, justice, and religion in the world. In our times, indeed, the obstacles in the way of doing this have been enormously increased so that there is, in truth, hardly room to stand without difficulty and danger. For while unbridled license reigns supreme the Church is obstinately fettered, the very name of liberty is mocked, and new devices are constantly being invented to thwart the work of yourselves and your clergy, so that it is no wonder that "you are not able to do everything all at once" for the correction of the erring, the suppression of abuses, the promotion of right ideas and right living, and the mitigation of the evils which weigh on the Church.
Source: Communium Rerum (Vatican.va)