Students who have an interest in aesthetics, epistemology, ethics, logic or metaphysics can pursue a graduate degree in philosophy. Using the knowledge they acquire in programs of this nature, students learn how to address fundamental problems that relate to truth, matter and existence. Those who enroll in master's degree programs in this subject can focus their studies on a specific area of this discipline, such as logic or ethics. Their courses, in topics like Greek philosophy, can prepare them for Doctor of Philosophy programs, or careers in the fields of law, education, public administration, medicine or science.