The philosophical study of right and wrong is known as ethics. This field has been studied for thousands of years and today has applications in a wide range of fields. Related topics include business and economic ethics.

Russia (Russian: Россия) is by far the largest country in the world, covering more than one-eighth of the Earth's inhabited land area. The former State Committee for Higher Education in Russia financed 240 universities, academies and institutes, making Russia a solid country to study in.

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.

Part time learning allows one to obtain part-time degrees even if one cannot attend school on a full-time basis. One can learn at his or own pace, gradually accumulating credits which count towards final qualification.