For long the desire for crude self-assertion of the name-scrawling sort and the love of secret understandings kept writing within a narrow scope; but that other, more truly social desire in men, the desire to _tell_, was also at work. The profounder possibilities of writing, the possibilities of a vast extension and definition and settlement of knowledge and tradition, only grew apparent after long ages. But it will be interesting at this point and in this connection to recapitulate certain elemental facts about life, upon which we laid stress in our earlier chapters, because they illuminate not only the huge value of writing in the whole field of man’s history, but also the rôle it is likely to play in his future. 1. Life had at first, it must be remembered, only a discontinuous repetition of consciousness, as the old died and the young were born. Such a creature as a reptile has in its brain a capacity for experience, but when the individual dies, its experience dies with it. Most of its motives are purely instinctive, and all the mental life that it has is the result of heredity (birth inheritance). 2. But ordinary mammals have added to pure instinct _tradition_, a tradition of experience imparted by the imitated example of the mother, and in the case of such mentally developed animals as dogs, cats, or apes, by a sort of mute precept also. For example, the mother cat chastises her young for misbehaviour. So do mother apes and baboons. 3. Primitive man added to his powers of transmitting experience, representative art and speech. Pictorial and sculptured record and _verbal tradition_ began. Verbal tradition was developed to its highest possibility by the bards. They did much to make language what it is to the world to-day. 4. With the invention of writing, which developed out of pictorial record, human tradition was able to become fuller and much more exact. Verbal tradition, which had hitherto changed from age to age, began to be fixed. Men separated by hundreds of miles could now communicate their thoughts. An increasing number of human beings began to share a common written knowledge and a common sense of a past and a future. Human thinking became a larger operation in which hundreds of minds in different places and in different ages could react upon one another; it became a process constantly more continuous and sustained....