  Gay's influence on later writers, such as Hume, deserves note. It is in Gay's essay that some of the questions that concerned Hume on the nature of virtue are addressed. For example, Gay was curious about how to explain our practice of approbation and disapprobation of action and character. When we see an act that is vicious we disapprove of it. Further, we associate certain things with their effects, so that we form positive associations and negative associations that also underwrite our moral judgments. Of course, that we view happiness, including the happiness of others as a good, is due to God's design. This is a feature crucial to the theological approach, which would clearly be rejected by Hume in favor of a naturalistic view of human nature and a reliance on our sympathetic engagement with others, an approach anticipated by Shaftesbury (below). The theological approach to utilitarianism would be developed later by William Paley, for example, but the lack of any theoretical necessity in appealing to God would result in its diminishing appeal.