In 1898 he made a trip to Heidelberg and met Max Weber, who also had a significant impact on his thought. He earned his habilitation in 1899 with a thesis entitled Die transzendentale und die psychologische Methode (The transcendental and the psychological method) directed by Eucken. He became a lecturer (Privatdozent) at the University of Jena in 1901. First period (Jena, Munich, Gottingen and World War I) Scheler taught at Jena from 1901 until 1906, then returned to the University of Munich where he taught from 1907 to 1910. At this time his study of Edmund Husserl's phenomenology deepened. Scheler had first met Husserl at Halle in 1901. At Munich, Husserl's own teacher Franz Brentano was still lecturing, and Scheler joined the Phenomenological Circle in Munich, centred around M. Beck, Th. Conrad, J. Daubert, M. Geiger, Dietrich von Hildebrand, Theodor Lipps, and Alexander Pfänder. Scheler was never a direct student of Husserl's, and in fact, their relationship was somewhat strained. In later years Scheler was rather critical of Husserl's Logical Investigations (1900/01) and Ideas I (1913), and he also was to harbor reservations about Being and Time by Martin Heidegger. At Munich Scheler was caught up in the conflict between the predominantly Catholic university and the local Socialist media, which led to the loss of his Munich teaching position in 1910. He then briefly lectured at the Philosophical Society of Göttingen, where he made and renewed acquaintances with Theodore Conrad, Hedwig Conrad-Martius (an ontologist and Conrad's wife), Moritz Geiger, Jean Hering, Roman Ingarden, Dietrich von Hildebrand, Husserl, Alexandre Koyré, and Adolf Reinach. Edith Stein was one of his students, impressed by him "way beyond philosophy". In 1911, he moved to Berlin as an unattached writer and grew close to Walther Rathenau and Werner Sombart. When his first marriage, to Amalie von Dewitz, ended in divorce, Scheler married Märit Furtwängler in 1912, who was the sister of the noted conductor Wilhelm Furtwängler. Scheler's son by his first wife, Wolf Scheler, became troublesome after the divorce, often stealing from his father, and in 1923, after Wolf had tried to force him to pay for a prostitute, Scheler sent him to his former student Kurt Schneider, a psychiatrist, for diagnosis. Schneider diagnosed Wolf as not being mentally ill, but a psychopath, using two diagnostic categories (Gemütlos and Haltlos) essentially equivalent to today's "antisocial personality disorder". Along with other Munich phenomenologists such as Reinach,