In An Enquiry concerning the Principles of Morals, David Hume builds on the concept of morals he put forward in A Treatise of Human Nature. He examines the contributions of moral sense and reason to the moral judgment of humans. He divides moral sense into categories of vice and virtue. He then divides virtue into categories of artificial and natural virtues. Artificial virtues come from and are enforced by society. Natural virtues are universal, as they come out of nature. Hume further divides natural virtues into voluntary and involuntary virtues. He reaffirms his earlier assertion that passions (moral sense), not reason, cause human action. He goes a bit further here in adding utility into the equation. He argues that passions combine with utility (or usefulness) to motivate moral action. Hume argues that benevolence plays an important role in virtue because benevolent acts offer the most utility for the greatest number of people.
This volume is linked with the other texts in your digital library, allowing you to cross-reference important words with a click. This is particularly helpful, as philosophers were in constant dialogue with each other’s works—critiquing, supporting. Now you can see the cited works in context in seconds. Moreover, every word is indexed for remarkably fast searching. Search results show up with a helpful context snippet, so you can quickly get the reference you’re looking for.