"It is forbidden to decry other sects; the true believer gives honour to whatever in them is worthy of honour."

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In one important sense, Marxism is a religion. To the believer it presents, 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 indication of the evil from which mankind, or a chosen section of mankind, is to be saved.

— Joseph A. Schumpeter