Along with Friedrich Nietzsche, Georg Simmel and Henri Bergson, Dilthey's work influenced early twentieth-century "Lebensphilosophie" and "Existenzphilosophie". Dilthey's students included Bernhard Groethuysen, Hans Lipps, Herman Nohl, Theodor Litt, Eduard Spranger, Georg Misch and Erich Rothacker. Dilthey's philosophy also influenced the religious philosopher Martin Buber. Dilthey's works informed the early Martin Heidegger's approach to hermeneutics in his early lecture courses, in which he developed a "hermeneutics of factical life," and in "Being and Time" (1927). But Heidegger grew increasingly critical of Dilthey, arguing for a more radical "temporalization" of the possibilities of interpretation and human existence. In "Wahrheit und Methode" ("Truth and Method", 1960), Hans-Georg Gadamer, influenced by Heidegger, criticised Dilthey's approach to hermeneutics as both overly aesthetic and subjective as well as method-oriented and "positivistic." According to Gadamer, Dilthey's hermeneutics is insufficiently concerned with the ontological event of truth and inadequately considers the implications of how the interpreter and the interpreter's interpretations are not outside of tradition but occupy a particular position within it, i.e., have a temporal horizon. Dilthey was interested in psychology. In his work "Ideas Concerning a Descriptive and Analytic Psychology" ("Ideen über eine beschreibende und zergliedernde Psychologie", 1894), he introduced a distinction between explanatory psychology ("erklärende Psychologie"; also explanative psychology) and descriptive psychology ("beschreibende Psychologie"; also analytic psychology, "zergliedernde Psychologie"): in his terminology, explanatory psychology is the study of psychological phenomena from a third-person point of view, which involves their subordination to a system of causality, while descriptive psychology is a discipline that attempts to explicate how different mental processes converge in the "structural nexus of consciousness." The distinction is based on the more general distinction between explanatory/explanative sciences ("erklärende Wissenschaften"), on the one hand, and descriptive/interpretive sciences ("beschreibende Wissenschaften" or "verstehende Wissenschaften", that is, the sciences which are based on the "Verstehen" method), on the other—see below.