The Forms of Existence of Meaning

In any science there are two kinds of concepts. Some of them are categories and are of a general scientific, sometimes even a philosophical, nature and function only in part as an aspect of the particular science. In other words, this science cannot itself lay claim to any comprehensive exploration of the essence of the particular category. Examples of such scientific concepts are "activity" in psychology and "system" or "development" in linguistics. They are among the strictly psychological or strictly linguistic concepts and acquire pertinent interpretations at specific psychological or specific linguistic levels of material that are inherent in the particular science.