Liberalism is extremely harmful in a revolutionary collective. It is a corrosive which eats away unity, undermines cohesion, causes apathy and creates dissension. It robs the revolutionary ranks of compact organization and strict discipline, prevents policies from being carried through and alienates the Party organizations from the masses which the Party leads. It is an extremely bad tendency.

Selected Works of Mao Tse-Tung (ed. Pergamon, 1965) - ISBN: 9780080229812