“In connection with the problem of establishing Juche I think it necessary to touch on internationalism and patriotism.
Internationalism and patriotism are inseparably linked with each other. You must know the love of Korean Communists for their country does not go against the internationalism of the working class but conforms fully with it. To love Korea is just as good as to love the Soviet Union and the socialist camp and, likewise, to love the Soviet Union and the socialist camp means precisely loving Korea. They constitute a complete whole. For the great cause of the working class has no frontiers and our revolutionary cause is a part of the international revolutionary cause of the working class throughout the world. The one supreme goal of the working class of all countries is to build a communist society. The different, if any, lies only in the fact that certain countries do this earlier and others later.
It would be wrong to advocate patriotism alone and neglect internationalist solidarity. For the victory of the Korean revolution and for the great cause of the international working class, we would strengthen solidarity with the Soviet people, our liberator and helper, and with the peoples of all the socialist countries. This is our sacred internationalist duty. The Soviet people, on their part, are doing all they can to consolidate solidarity not only with the countries of the socialist camp but also with the working class of the whole world, both for the communist construction in their country and for the victory of world revolution.
Thus, patriotism and internationalism are inseparable. He who does not love his own country cannot be loyal to internationalism, and he who is unfaithful to internationalism cannot be faithful to his own country and people. A true patriot is precisely an internationalist and vice versa.”
(Source: Kim Il Sung- Selected Works, Volume 1, P. 593)