Humans are a category that philosophers are always interested in research as they are the object and the subject of cognitive activity in social life. From a humanistic point of view, humans were mentioned in Renaissance philosophy as well as in the Enlightenment era as “Liberty – Equality - Fraternity”. Continuing that humanistic tradition, the ideal human perspective was analyzed more broadly and humanely by Ludwig Feuerbach based on the spirit on Enlightenment philosophy. Nevertheless, an humanistic view of humanity has not helped people liberate themselves to have a real life as Ludwig Feuerbach wanted. Humans – living and creative entities – want to liberate themselves and must participate in labor and struggle in practice life, which Karl Marx absorbed and developed in his research. Through Karl Marx’s theory of men, workers fight for a realistic happy life for themselves.