Abstract

The paper examines the importance of monism in Heidegger’s thought. Monism is understood here as the supposition of one kind of existence, or a single mode of being. Monism matters for a better understanding of Heidegger’s approach to practical philosophy. The paper explains that monism always faced the question of how to account for action. If there is a single, unified being, then aren’t all actions merely modifications of that being? The paper traces Heidegger’s answer to this question to argue that it faces two problems: Heidegger’s solution is similar to the solution in onto-theo-logy; and, it appears to make action trivial or self-contradictory. Despite that, the paper highlights the importance of Heidegger’s answer for continental philosophy.