  Inspired by his reading of Heidegger’s Being and Time, and having already been influenced by Marxism during his military days, Marcuse went to Freiberg to study with Heidegger in 1928. Between 1928 and 1932 he attempted to develop what has been called Heideggerian or phenomenological Marxism. This project was Marcuse’s response to what has been called the “crisis of Marxism.” 