The Encyclical Letter Evangelium vitae, with reference to judicial decisions or civil laws that authorise or promote abortion or euthanasia, states that there is a grave and clear obligation to oppose them by conscientious objection. [...] In the case of an intrinsically unjust law, such as a law permitting abortion or euthanasia, it is therefore never licit to obey it, or to 'take part in a prop