It takes a great deal of discipline to educate yourself. Time must be set aside for study, not just reading, but serious study. It is like homework for a student in school, there must be a specific time and place, as well as a source of information and activities that will enrich the understanding of the topic in question. Tests can be taken for certification of knowledge. The Praxis series are tests that indicate a level of knowledge in various subjects. Passing these tests is the equivalent of having college level credits. Many degrees and certifications require a certain level of understanding and expertise. It is possible at many universities to obtain credit for past experience through portfolio work, letters of recommendation, the writing of papers, and passing tests such as the Praxis.