Under the ideal measure of values there lurks the hard cash. - Karl Marx

Philosophers have hitherto only interpreted the world in various ways; the point, however, is to change it.

Finally, there came a time when everything that men had considered as inalienable became an object of exchange, of traffic and could be alienated. This is the time when the very things which till then had been communicated, but never exchanged; given, but never sold; acquired, but never bought – virtue, love, conviction, knowledge, conscience, etc. – when everything, in short, passed into commerce. It is the time of general corruption, of universal venality, or, to speak in terms of political economy, the time when everything, moral or physical, having become a marketable value, is brought to the market to be assessed at its truest value.

In order to abolish the idea of private property, the idea of communism is completely sufficient. It takes actual communist action to abolish actual private property. History will com to it; and this movement, which in theory we already know to be a self-transcending movement, will constitute in actual fact a very severe and protracted process. But we must regard it as a real advance to have gained beforehand a consciousness of the limited character a well as of the goal of this historical movement - and a consciousness which reaches out beyond it.