Marx put forward “There isn’t right in which there isn’t obligatory

and there isn’t obligatory in which there isn’t right" in The Temporary Regulations of the International Worker’s Association in October

1864. There was dialectical relation of the unity of opposites in this subject. Marx revealed men’s relations through the dialectical relation of the unity of opposites between right and obligation. Especially

Marx revealed the class relations between the proletariat and the bourgeoisie in the capitalist system. So Marx’s thought about the relations of right and obligation included deep meanings of the proletarian revolution.