Bayard Sartoris In William Faulkner's The Unvanquished

In William Faulkner's book The Unvanquished, Bayard Sartoris made a crucial decision in his life to become a man. In "The Odor of Verbena," Bayard had found out that his father was killed by his old business partner, Mr. Redmond. He then had to choose between killing Redmond or not, knowing that each decision would have a consequence. He chose to let Redmond live, allowing him to have the will he wanted. His action was honorable because he took into account what he cared about, not what others did, and picked the decision which was most important to him. He was aware of the risk and alienated all external forces telling him to kill Redmond, and by doing so, he became a free man. Bayard's move showed Faulkner's readers that the best move one
can make in certain situations are the ones from the heart. Furthermore, based on his actions, which philosophical model best explains the actions Bayard took for his father's death?