 Herder’s principle of humanity takes two distinguishable forms: an early form for which he normally uses the term Menschheit, found especially in This Too a Philosophy of History, and a later form for which he usually uses the term Humanität, found especially in the Ideas and the Letters for the Advancement. These versions differ not only terminologically but also substantively, in that, for example, the later version tends toward a more cognitive and universalistic conception of moral value than the earlier one. It can be argued that Herder’s earlier version was the actually the more original and philosophically deeper of the two.