ABSTRACT
The reason-based morality is integral to membership in society. This chapter begins by defining reason. Reason means embracing reality. An allied idea is that everything has natural causes that can be explained. Thus, "supernatural" can only refer to imaginary phenomena outside of reality. Theoretically, perhaps one could imagine some set of ethics that promotes DNA replication while contravening reason, but it seems more likely that nature and reason would be aligned. Now, some say there are other sources of knowledge besides reason, such as intuition and mystical, non-sensory, non-rational modes of thought, including religious faith. While some do try to reason their way into faith, its essence is really to believe because one makes a choice to do so. It does not rest on any evidentiary validation. Plato likened the human psyche to a chariot pulled by two horses, reason and emotion.
