The aim of this paper is that of underlining the actuality and complexity of Murray Bookchin’s production through a brief analysis of the central concepts of his philosophy: social ecology and dialectical naturalism. We argue that, starting from the perspective of a necessary unity of praxis and theory – respectively expressed by the concepts above -, Bookchin fails to take into account the theoretical implication of the interplay of first and second nature, the outcome being a closure of human praxis (...) into a logical and a-historical dimension. Albeit it is philosophically necessary to consider humankind as always already located within an environment whose crisis reflect societal contradictions and viceversa, Bookchin’s naturalism can display the misleading scope of deducting ethics from a natural state, renewing the inherent philosophical fallacies of the Enlightenment era. (shrink)