Complex sentence: Evald Vassilievich Ilyenkov (18 February 1924, Smolensk--21 March 1979, Moscow) was a Marxist author and Soviet philosopher who did original work on the materialist development of Hegel's dialectics, notable for his account of concrete universals.
Split into simpler sentences: Evald Vassilievich Ilyenkov (18 February 1924, Smolensk--21 March 1979, Moscow) was a Marxist author and Soviet philosopher. Evald Ilyenkov did original work on the materialist development of Hegel's dialectics, notable for his account of concrete universals.