Religious suffering is at once the expression of real suffering and a protest against real suffering. Religion is the sigh of the oppressed creature the sentiment of the heartless world as it is the soul of soulless condition. It is the opium of the people.

Religion is not merely the opium of the masses it's the cyanide.

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.

Religion is the opium of the masses.

Under the pressure of the cares and sorrows of our mortal condition men have at all times and in all countries called in some physical aid to their moral consolations - wine beer opium brandy or tobacco.

Everything one does in life even love occurs in an express train racing toward death. To smoke opium is to get out of the train while it is still moving. It is to concern oneself with something other than life or death.