for abstract presentations—conceptions." ("Preisschrift ueber die Grundlage der Moral," 1860, p. 148.)
The capacity for abstract presentations depends again on language. Probably it was a deficiency in language which caused the first concept to be formed. In Nature there are only single things; language is, however, too poor to be able to describe every single thing. Man must consequently describe all things which are similar to each other with the same word; but with this he undertakes unconsciously a scientific work, the collection of the similar, the separation of the unlike. Language is then not simply an organ of mutual understanding of different men with each other, but has become an organ of thought. Even when we do not speak to others, but think to ourselves only, the thoughts must be clothed in certain words.
Does language, however, give to man a certain freedom in contrast to the animals, this, all the same, only develops on a higher plane what the formation of the brain had already begun.
In the lower animals the nerves of motion are directly connected with the nerves of sensation; here every external impression at once releases a movement. Gradually, however, there developes a bundle of nerves to a central point of the entire nervous system, which receives all the impressions and is not obliged to transmit all to the motor nerves, but can store them up and work them off. The higher animal gathers experiences which it can utilise, and impulses which even under certain circumstances it can hand on to its descendants.
Thus through the medium of the brain the connection between the external impression and the movement is obscured. Through the language, which renders possible the communication of ideas to others, as well as abstract conceptions, scientific knowledge, and convictions, the connection between sensation and movement becomes in many cases completely unrecognisable.
A very similar thing happens in Economics. The most primitive form of the circulation of wares is that of
