This evidently presupposes the internalist theory of motivation (i.e. a belief can itself motivate), in contrast to the externalist theory of motivation, also known as the Humean theory of motivation (i.e. both a belief and a desire are required to motivate). If internalism is true, then the OQA avoids begging the question against the naturalist, and succeeds in showing that the good cannot be equated to some other property.