German philosopher Ernst Cassirer. An important representative of Marburg School of Neo-Kantianism. 1945 was born in a Jewish family in breslau, Silesia on July 28th, and died in new york on April 3rd. He studied in Berlin, Leipzig, Munich, Heidelberg and Marburg University successively, and received his doctorate from 1899. He once taught in Hamburg, Oxford and Gothenburg University, 194 1 went to the United States, and successively served as a professor at Yale and Columbia University. Cassirer inherited and developed the Marburg School's neo-Kantianism, extended the application scope of I. Kant's transcendental principle to various fields such as language, religion, myth, art and science, and tried to expound his views through abstract analysis of various symbol forms. But the symbols he said, like Kant's concepts and categories, do not reflect the objective world, but construct it. He is the author of Philosophy in Symbolic Form, Problems of Knowledge (Philosophy, Science and History since Hegel), Matter and Function, On Man and so on.