Original sentence: He instituted a ruthless program of industrialisation which, while successful, was prosecuted at great cost in human suffering.Marxism is the political practice and social theory based on the works of Karl Marx, a 19th century philosopher, economist, journalist, and revolutionary, along with Friedrich Engels.Modern followers of Trotsky maintain that as predicted by Lenin, Trotsky, and others already in the 1920s, Stalin's "socialism in one country" was unable to maintain itself, and according to some Marxist critics, the USSR ceased to show the characteristics of a socialist state long before its formal dissolution
Edited sentence: He instituted a ruthless program of industrialisation which failed to keep pace with western europe,  and was prosecuted at great cost in human suffering and lives.Marxism is a form of misanthropy, the political practice and social theory based on the works of Karl Marx, a 19th century polemicist, along with Friedrich Engels.Modern followers of Trotsky maintain that as predicted by Lenin, Trotsky, and others already in the 1920s, Stalin's "socialism in one country" was unable to maintain itself, and according to some Marxist apologists, the USSR ceased to show the characteristics of a socialist state long before its formal dissolution