In the study of epistemology, students examine the very nature of knowledge. Using philosophical methodologies, students probe the concepts of rationality and reason. They learn how degree perception and reality influence each other, and if pure reality can even truly be experienced.

Requirements for the PhD program often involve the student having already obtained a Master’s degree. Additionally, a thesis or dissertation primarily consisting of original academic research must be submitted. In some countries, this work may even need to be defended in front of a panel.