1. Founded Theistic or Teleological Idealism, metaphysical system, in which attempted to reconcile science with religion, reason with feeling, knowledge with value, stated that the laws of nature were tools of a divine purpose, or telos
2. Introduced a distinction between the existence of things (Sein) and their significance (Bedeutung), he was the first who introduce the new concept of the value (Geltung).
3. Promoted the “universal inner connection of all reality”, arguing that being (Sein) is the proper domain of science and metaphysical speculation ordering it according to a values (Geltung).
4. Developed theory of space perception (conceptions of local signs).
Metaphysics has for its parts ontology, cosmology, and phenomenology.
Hermann Lotze influenced practically all the leading philosophical schools of 20-th century: the neo-Kantians; Brentano and his school; The British idealists; William James’s pragmatism; Husserl’s phenomenology; Dilthey’s philosophy of life; Frege’s new logic; the early Cambridge analytic philosophy.
Lotze also published a volume of his Poetry (Lotze 1840).
In 1838 he gained the degree of doctor of medicine and four months after obtaining the degree of doctor of philosophy. In 1839 Lotze joined the University of Leipzig where he began to teach medicine as an adjunct lecturer in the Department of Medicine (1839-1844).
In 1840 Lotze achieved dual degrees, based on post-doctoral dissertations (Habilitation), in medicine and philosophy.
He laid the foundation of his philosophical system in his first publications: Metaphysik (Leipzig, 1841) and his Logik (1843), in which he charted his philosophical program.
In the year of his marriage, 1844, Lotze was appointed professor at the University of Göttingen. There he was named Herbart’s successor as Professor of Philosophy at the University of Göttingen (1844-1880).
Over the next ten years, Lotze worked on problems at the intersection of medicine and philosophy. In 1852 was published his Medical Psychology.
Between 1856 and 1864 were published 3 volumes of Microcosm.
In 1880 he accepted offer conveyed by Zeller, to move to Berlin, where he one year worked as a Professor of Philosophy at the University of Berlin.
In 1839, Lotze became engaged to Ferdinande Hoffmann of Zittau (b. 1819), and they were married in 1844. They had four sons. Lotze was deeply attached to his wife, and her death in 1875 was a loss from which he never recovered.
he lives a sort of solitary life in the country where his home is, about half a mile from Göttingen, and is looked upon as unsociable. Lotze possessed an extraordinary ability for studying languages. Many of his papers were written in French, in Latin and one in English.
He died on July 1, 1881 in Berlin of pneumonia and a cardiac defect that he had suffered from all his life.
He was succeeded in the Berlin Chair by Wilhelm Dilthey.
Lotze was buried beside his wife in Göttingen.