"“The struggle against religion is, therefore, indirectly a struggle against that world whose spiritual aroma is religion.
Religious suffering is at the same time an expression of real suffering and a protest against real suffering. Religion is the sign of the oppressed creature, the sentiment of a heartless world, and the soul of soulless conditions. It is the opium of the people.
The abolition of religion as the illusory happiness of men, is a demand for their real happiness. The call to abandon their illusions about their conditions is a call to abandon a condition which requires illusions. The criticism of religion is, therefore, the embryonic criticism of this vale of tears of which religion is the halo.”
