Abstract
In the development of any science, sooner or later, there comes a stage when it needs to extend its abstract theoretical positions on a particular material. Here the method of science achieves such an organic unity with the subject that one can speak of it as a historically completed science. The concept of "expertise" as applying specialized knowledge to a fact, is this achieved science identity. Humanities indistinguishable from natural. Only a slight difference in the term implies different forms relationships. Science spirit, thus resulting science is performing examination, natural science - a science, conducting experiment