 There is a fourth and final reason why this might be true. Many philosophers, especially those working in the Aristotelian tradition, understand character traits to be metaphysically real dispositions with causal powers of their own that give rise to relevant thoughts and, in turn, to trait relevant actions. The trait of honesty, for example, is a real feature of an honest person’s psychology which, when triggered, can lead to the formation of honest occurrent thoughts and feelings. It can figure into causal explanations for action, and can be a reliable basis for predicting future behavior.