Have you ever noticed how the moral argument for God is somewhat like the first-cause (or cosmological) argument for God? At the core of the first-cause argument is the idea that, if we notice a sequence of causes, then there must be either an infinite regress of causes or there was an ultimate first cause. However, the moral argument functions much in the same way. G. E. Moore introduced the idea of the “open question”: if we say that something is good, then the following question can always be asked: “What makes that thing good?” Any answer you give to that question can also have the same question asked of it: “Well, then that makes that thing good?” This causes an infinite regress unless, of course, there is one thing that is just ultimately good.