Hobbes's concept of courage that is addressed earlier in .

David Hume listed virtues into two categories in his work A Treatise of Human Nature: artificial virtues and natural virtues. Hume categorized courage as a natural virtue. In the Treatise's section "Of Pride and Humility, Their Objects and Causes", Hume wrote that courage is a cause of pride: "Every valuable quality of the mind, whether of the imagination, judgment, memory or disposition; wit,