 Turgot and Condorcet also hold that short-term decline can be part of a pattern of long-term improvement.  In the intellectual realm, the path to truth is rocky, and errors are frequently the first result of reflection (Turgot 1750, 44; Condorcet 1795, 37–38).  For instance, the false scientific philosophy of faculties and essences is born of reflection on phenomena.  In the realm of action, devastating events like war and conquest can ultimately unite scattered groups of people and ameliorate political organization (Turgot 1751, 71–2; Condorcet 1795, 51).  Moreover, Turgot argues that individuals and groups that contribute to progress are often motivated by emotion or personal interest (1751, 69–70).  The second observation is related to the first, since Turgot thinks that the agents of creative destruction are usually narrowly self-interested or emotion-driven. 