Karl Marx

“Let the ruling classes tremble at a communist revolution. The proletarians have nothing to lose but their chains. They have a world to win. Workingmen of all countries, unite!”

“Workers of the world unite; you have nothing to lose but your chains.”

“The worker of the world has nothing to lose, but their chains, workers of the world unite.”

“Religion is the opiate of the people.”

“The ideas of the ruling class are in every epoch the ruling ideas, i.e., the class which is the ruling material force of society, is at the same time its ruling intellectual force.”

“Reason has always existed, but not always in a reasonable form.”