Abstract

Rousseau coined the term perfectibilité to name what he claimed was the faculty that distinguished human beings from other animals. Although Rousseau himself largely associated perfectibility with the tendency of the human race to become corrupt, later thinkers adopted his term but then transformed it into a concept denoting the human capacity for progress. This article has two goals. The first goal is to analyse Rousseau’s discussion of perfectibilité in order to identify a specifically Rousseauean of perfectibilité. I identify three related features of Rousseau’s perfectibilité: the ambiguous status of both instinct and freedom, the unique malleability of human nature, and the fact that perfectibilité operates on both the levels of the individual and the species. The second goal is to examine the transformation of this specifically Rousseauean conception in the thought of one of the thinker largely responsible for giving it a very different direction, Condorcet.