“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. The class which has the means of material production at its disposal, has control at the same time over the means of mental production, so that thereby, generally speaking, the ideas of those who lack the means of mental production are subject to it. The ruling ideas are nothing more than the ideal expression of the dominant material relationships, the dominant material relationships grasped as ideas.”

“The ruling ideas of each age have ever been the ideas of its ruling class.”

“The oppressed are allowed once every few years to decide which particular representatives of the oppressing class are to represent and repress them.”

“Political power, properly so called, is merely the organised power of one class for oppressing another.”

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

“Favourite motto … De omnibus dubitandum [Everything must be doubted].”

“History repeats itself, first as tragedy, second as farce.”

“Democracy is the road to socialism.”

Karl Marx