The aim of this work is to provide interested scholars of the philosophy of knowledge with the general bases about the definition and constitution of epistemology, by excelling those themes and issues related to it that have marked an important page in the history of philosophical thought. Such work will come much closer to a philosophy philosophy of knowledge than to an essay or treatise having as its object the same referent, so that it can be more comprehensible to those directly concerned, who can also assimilate thanks to the exemplification of theses that are complex in themselves with not too many difficulties what you want to express in these pages.