to drive their own history as the culmination of a long-term historical process, whose foundations were laid by capitalism's ushering in of the working class, and thus Juche is unique to the socialist era. However, for the masses to succeed they need a Great Leader. Marxism–Leninism argues that the people will lead, on the basis of their relationship to production. In North Korea a singular Great Leader is considered essential, and this helped Kim Il-sung establish a one-person autocracy. This theory makes the Great Leader an absolute, supreme leader. The working class thinks not for itself, but through the Great Leader; he is the mastermind of the working class and its only legitimate representative. Class struggle can only be realized through the Great Leader; difficult tasks in general (and revolutionary changes in particular) can only be introduced through—and by—him. Thus, in historical development the Great Leader is the leading force of the working class; he is a flawless, incorruptible human being who never makes mistakes, is always benevolent and rules for the benefit of the masses (working class). For the Great Leader system to function, a unitary ideology must be in place; in North Korea, this is known as the Monolithic Ideological System. Kim dynasty The Kim dynasty began with Kim Il-sung, the first leader of the WPK and North Korea. The official ideology is that the North Korean system functions "well" because it was established by Kim Il-sung, whose successors follow his bloodline. Every child is educated in "the revolutionary history of the Great Leader" and "the revolutionary history of the Dear Leader" (Kim Jong-il). Kim Il-sung's first choice as successor was Kim Yong-ju, his brother, but he later decided to appoint his son Kim Jong-il instead; this decision was formalized at the 6th Congress. Kim Jong-il appointed his youngest son, Kim Jong-un, as his successor at the 3rd WPK Conference in 2010, and his son succeeded him in early 2011. Because of the familial succession and the appointment of family members to high office, the Kim family has been called a dynasty and a royal family. Suh Dae-sook, the author of Kim Il Sung: The North Korean Leader, notes that "What he [Kim Il-sung] has built in the North, however, resembles more a political system to accommodate his personal rule than a communist or socialist state in Korea. It is not the political system he built that will