A separation of individuals from control and direction of their social life. The term was used widely in German philosophy in the 18th and 19th centuries, but it has become important for sociology through the ideas of Karl Marx (1818-1883). Marx claimed that human alienation was created by a socially structured separation between humans and their work. This separation reached its highest intensity in capitalist society where the great mass of the population depended for subsistence on working under the direction of others. In the capitalist workplace, individuals were separated from ownership, control and direction of their work and were unable to achieve personal creative expression. The competitive nature of the workplace also alienated, or separated, workers from each other.