EN
Modern thinking about human is connected with the statement Cogito, ergo sum. Descartes has been criticized for having divided human into two kinds of substance: extended (res extensa) and unextended (res cogitans), and, thus, for having created a false problem. In the author’s opinion this criticism is implausible. The aim of the article is to support the view that Descartes thought about human as an existing psychophysical unity, and the division of substances into different kinds is possible only in epistemological considerations.