If spoken language is the first element which served to constitute human societies, fixed, that is written language, has been the fundamental cause of their progress. By means of writing, one generation has been enabled to hand down to the other the fruits of their experience and investigation, and thus to lay the foundation of primitive science and history.
The first forms of writing were mere mnemonic signs. Stones cut to a certain fashion, pieces of wood to which a conventional form had been imparted, and such like, were the first signs of written language. One of the most curious forms of mnemonic writing has been met with both in the Old and New Worlds; it consisted in joining little bundles of cord of different colours, in which were tied knots of various kinds. Whoever ties a knot in his handkerchief in order to recall to mind some fact or intention, makes use, without knowing it, of the primitive form of writing.
An advance in writing consisted in representing pictorially objects which it was wished to designate. The wild Indians of North America still make use of these rough representations of objects, as a means of imparting certain information.
This very system is rendered more complete, when the design is supplemented by a conventional idea. If prudence is indicated by a serpent, strength by a lion, and lightness by a bird, we here at once recognize writing properly so called. This last form of writing is known as the symbolical or ideographic.
Symbolical writing existed among the ancients. The hieroglyphics which are engraved upon the monuments of ancient Egypt, and those which have been found upon Mexican remains, belong to symbolical writing.
And yet this is not writing in the true sense of the word, which does not exist until the conventional signs, of which use is made, correspond with the words or signs of the language spoken, and can actually replace the language itself.
By the alphabet, is meant the collection of conventional signs corresponding to the sounds which form words. The alphabet is one of those inventions which have called for the greatest efforts of the human mind, and it is not without good reason that Greek mythology deified Cadmus, the inventor of letters. The same admiration for the inventors of alphabets is, moreover, exhibited among all ancient nations.
It is not only through its immense superiority as regards extent and power, that the intelligence of man is distinguished from that of the brute; there is an attribute of intelligence which is strictly peculiar to our species. This is the faculty of abstraction, which permits of our collecting and placing together the perceptions of the mind, by that means arriving at general results. It is through this power of abstraction, that our intellect has created the wonders which are familiar to all; that the arts and sciences have been brought to light and fostered by society.
In connection with the faculty of abstraction, we must allude to the moral sense, which is a deduction from that same property. The moral sense is a special attribute of human intelligence, and it may be said that through this attribute, man’s intellect is distinguished from that of animals; for this characteristic is most truly peculiar to the mind of man, and is nowhere found among animals.