Communism (n.) is the lay form of Catholicism.
Communism (n.) is fascism with a human face.
Communism (n.) is socialism with electricity.
Communism (n.) is the most painful path between Capitalism and Capitalism.
Leninism (n.) is only Marxism brought up to date. It is the active Marxism of the era of imperialism and proletarian revolutions.
Leninism (n.) is a combination of two things which Europeans have kept for some centuries in different compartments of their soul - religion and business.
Marxism (n.) is essentially a product of the bourgeois mind.
Marxism (n.) is a religion, presenting to the believer first a system of ultimate ends that embody the meaning of life and are absolute standards by which to judge events and actions; and, secondly, a guide to those ends which implies a plan of salvation and the indignation of the evil from which mankind, or a chosen section of mankind, is to be saved.
Marxism (n.) is a spiritual (not a religious) teaching aiming at the betterment of society. It is not a perfect blueprint for a truly spiritual society. Marx, it should not be forgotten, was (and of course is) a disciple of the Master Jesus Who inspired him.
Marxism (n.) is a flight from the magic of the individual person and the mystique of hierarchy.