 Bernard Gert’s (2005) moral view also operates with a definition of morality that understands endorsement as advocacy, in the sense of putting forward as a guide for all rational agents. Gert offers the following two conditions as those under which all rational persons would put forward a universal guide for governing the behavior of all moral agents. The first condition is that they are seeking agreement with all other rational persons or moral agents. The second condition is that they use only those beliefs that are shared by all rational persons: for example, that they themselves are fallible and vulnerable and that all those to whom morality applies are also fallible and vulnerable. The second condition rules out both religious beliefs and scientific beliefs since there are no religious beliefs or scientific beliefs that all rational persons share. This condition is plausible because no universal guide to behavior that applies to all rational persons can be based on beliefs that some of these rational persons do not share.