It is no longer a question anywhere of inventing interconnections from out of our brains, but of discovering them in the facts.

Don't forget any affront done to you and to all our people, the time of revenge will come and must be put to good use.

Three hundred years after its appearance Christianity was the recognized state religion in the Roman World Empire, and in barely sixty years socialism has won itself a position which makes its victory absolutely certain.

All that is real in human history becomes irrational in the process of time.

If in all ideology men and their circumstances appear upside-down as in a camera obscura, this phenomenon arises just as much from their historical life-process as the inversion of objects on the retina does from the physical life-process.

But the most horrible spot .... lies....immediately south west of Oxford Road and is known as Little Ireland. The race that lives in these ruinous cottages, behind broken windows, mended with oilskin, sprung doors, and rotten door-posts, or in dark, wet cellars, in measureless filth and stench....must surely have reached the lowest stage of humanity.

Just as Darwin discovered the law of evolution in organic nature, so Marx discovered the law of evolution in human history; he discovered the simple fact, hitherto concealed by an overgrowth of idealogy [sic], that mankind must first of all eat and drink, have shelter and clothing, before it can pursue politics, science, religion, art etc.