An outline of the main topics of the Karel Krejčí's work, his scientific interests and methods. The author rectifies the common image of "positivism": the positivism was not interested only in "facts", but in the idea of the automatic rise of concepts from the empirical approach.
The author revises also the idea that the Russian formalism examined the "shape" of literary work, whereas the so-called sociologist studies examined social status of the work. Every of these doctrines disposed its own theory of social status and structural shape of the work.