Abstract

In his recent discussion of Nietzsche’s naturalism, Brian Leiter invokes examples from the world of plants to demonstrate that human behavior and values are causally determined by “heritable psychological and physiological traits,” or what he also refers to as “type-facts.”1 On this view, Nietzsche’s naturalistic project is concerned with explaining how and why a certain type of person comes to bear certain values and ideas just as “one might come to understand things about a certain type of tree by knowing its fruits.”2 Leiter holds that “just as natural facts about the tree explain the fruit it bears, so too type-facts about a person will explain the ideas and values he comes to bear.”3 Nietzsche views the..