Money appears as measure (in Homer, e.g. oxen) earlier than as medium of exchange,because in barter each commodity is still its own medium of exchang… - Karl Marx

Everyone has a goal which appears to be great, at least to himself, and is great when deepest conviction, the innermost voice of the heart, pronounces it great. … This voice, however, is easily drowned out, and what we thought to be inspiration may have been created by the fleeting moment and again perhaps destroyed by it. … We must seriously ask ourselves, therefore, whether we are really inspired about a vocation, whether an inner voice approves of it, or whether the inspiration was a deception, whether that which we took as the Deity's calling to us was self-deceit. But how else could we recognize this except by searching for the source of our inspiration?

Men make their own history, but they do not make it as they please; they do not make it under self-selected circumstances, but under circumstances existing already, given and transmitted from the past. The tradition of all dead generations weighs like a nightmare on the brains of the living.

The aggregate capital appears as the capital stock of all individual capitalists combined. This joint stock company has in common with many other stock companies that everyone knows what he puts in, but not what he will get out of it.