"Religion is the opium of the people" is one of the most frequently paraphrased statements of Karl Marx. It was translated from the German original, "Die Religion ... ist das Opium des Volkes" and is often referred to as "religion is the opiate of the masses." The quotation originates from the introduction of his 1843 work Contribution to Critique of Hegel's Philosophy of Right which was subsequently released one year later in Marx's own journal Deutsch-Französische Jahrbücher, a collaboration with Arnold Ruge. The phrase "This opium you feed your people" appeared in 1797 in Marquis de Sade's text L'Histoire de Juliette and Novalis's "[R]eligion acts merely as an opiate" around the same time. The full quote from Karl Marx is as follows: "Religion is the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people".

The quotation, in context, reads as follows (emphasis added):

The foundation of irreligious criticism is: Man makes religion, religion does not make man. Religion is, indeed, the self-consciousness and self-esteem of man who has either not yet won through to himself, or has already lost himself again. But man is no abstract being squatting outside the world. Man is the world of man – state, society. This state and this society produce religion, which is an inverted consciousness of the world, because they are an inverted world. Religion is the general theory of this world, its encyclopaedic compendium, its logic in popular form, its spiritual point d’honneur, its enthusiasm, its moral sanction, its solemn complement, and its universal basis of consolation and justification. It is the fantastic realization of the human essence since the human essence has not acquired any true reality. The struggle against religion is, therefore, indirectly the struggle against that world whose spiritual aroma is religion.

The People, also known for a while as the Sunday People, is a British tabloid Sunday-only newspaper. The paper was founded on 16 October 1881.

It is published by the Trinity Mirror Group. In July 2011 it had an average daily circulation of 806,544.