Those experienced in work must take up the study of theory and must read seriously; only then will they be able to systematize and synthesize their experience and raise it to the level of theory, only then will they not mistake their partial experience for universal truth and not commit empiricist errors.
Mao Zedong...it is impossible for a genuine people's revolution in any country to win victory without various forms of help from the international revolutionary forces.
Mao ZedongClasses struggle, some classes triumph, others are eliminated. Such is history; such is the history of civilization for thousands of years.
Mao Zedong