Karl Marx

The proletarians have nothing to lose but their chains.

Let the ruling classes tremble at a communist revolution. The proletarians have nothing to lose but their chains. They have a world to win.

WORKERS OF ALL COUNTRIES, UNITE!

The bourgeoisie has stripped of its halo every occupation hitherto honored and looked up to with reverent awe. It has converted the physician, the lawyer, the priest, the poet, the man of science, into its paid wage laborers.

The history of all hitherto existing society is the history of class struggles.

As I pondered over the facts that the light of reason is not only despised, but by many even execrated as a source of impiety, that human commentaries are accepted as divine records, and that credulity is extolled as faith;

Our natural terrors present the notion of a devilish and malicious deity: Our propensity to adulation leads us to acknowledge an excellent and divine.

And while their gloomy apprehensions make them ascribe to him measures of conduct, which, in human creatures, would be highly blamed, they must still affect to praise and admire that conduct in the object of their devotional addresses

The heart secretly detests such measures of cruel and implacable vengeance; but the judgment dares not but pronounce them perfect and adorable. And the additional misery of this inward struggle aggravates all the other terrors, by which these unhappy victims to superstition are forever haunted

a young man, who reads the history of the gods in Homer or Hesiod, and finds their factions, wars, injustice, incest, adultery, and other immoralities so highly celebrated, is much surprised afterwards, when he comes into the world, to observe that punishments are by law inflicted on the same actions, which he had been taught to ascribe to superior beings

It is not sufficient to observe, that the people, everywhere, degrade their deities into a similitude with themselves, and consider them merely as a species of human creatures, somewhat more potent and intelligent. This will not remove the difficulty. For there is no man so stupid, as that, judging by his natural reason, he would not esteem virtue and honesty the most valuable qualities, which any person could possess. Why not ascribe the same sentiment to his deity? Why not make all religion, or the chief part of it, to consist in these attainments?