The present volume to this point might be regarded as a gloss on a single text of Harold Innis: "The effect of the discovery of printing was evident in the savage religious wars of the sixteenth and seventeenth centuries. Application of power to communication industries hastened the consolidation of vernaculars, the rise of nationalism, revolution, and new outbreaks of savagery in the twentieth century."

Print, in even more revolutionary ways than writing, changed the very form of civilization. ...the Protestant Revolution was contemporaneous with the invention of moving type. ...the printing and distribution of millions of Bibles made possible a more personal religion, as the Word of God rested on each man's kitchen table. The book, by isolating the reader and his responses, tended to separate him from the powerful oral influences of his family, teacher, and priest. Print thus created a new conception of self as well as of self-interest. At the same time, the printing press provided the wide circulation necessary to create national literatures and intense pride in one's native language. Print thus promoted individualism on one hand and nationalism on the other.

The full impact of printing did not become possible until the adoption of the Bill of Rights in the United States with its guarantee of freedom of the press. A guarantee of freedom of the press in print was intended to further sanctify the printed word and to provide a rigid bulwark for the shelter of vested interests.

The invention of the printing press probably marks the beginning of the decline of civilization. Once you have it, science follows close behind. Next thing you know the idiots have better weaponry. Then atom bombs. Meantime, social organization becomes increasingly dependent on technology, which becomes increasingly vulnerable to error or sabotage. If we can judge by our own experience, it looks as if you get the printing press, then about a thousand years. After that it’s back to the trees.

The discovery of printing in the middle of the fifteenth century implied the beginning of a return to a type of civilization dominated by the eye rather than the ear.

In schools, print shifted the emphasis from oral to written and visual communication. Teachers who had been only partly concerned within instructing their students in how to read became by the mid-sixteenth century concerned with almost nothing else. Since the sixteenth century, the textbook has been a primary source of income for book publishers. Since the sixteenth century, written examinations and written assignments have been an integral part of the methodology of school teaching; and since the sixteenth century, the image of the isolated student who reads and studies by himself, has been the essence of our conception of scholarship. In short, for 400 years Western civilization has lived in what has been characterized as the "Age of Gutenberg." Print has been the chief means of our information flow. Print has shaped our literature and conditioned our responses to literary experience. Print has influenced our conception of the educational process. But ...print no longer "monopolizes man's symbolic environment," to use David Riesman's phrase. That monopoly began to dissolve toward the middle of the nineteenth century, when a more or less continuous stream of media inventions began to make accessible unprecedented quantities of information and created new modes of perception and qualities of aesthetic experience. ...1839 ...Daguerre developed the first practical method of photography. In 1844, Morse perfected the telegraph. In 1876, Bell transmitted the first telephone message. A year later, Edison invented the phonograph. By 1894, the movies had also been introduced. A year after that, Marconi sent and received the first wireless message. In 1906, Fessenden transmitted the human voice by radio. In 1920, regularly scheduled radio broadcasts began. In 1923, a picture was televised between New York and Philadelphia. In that same year, Henry Luce and Briton Hadden created a totally new idea in magazines with Time. In 1927, the first "talkie" appeared; and in 1923, Disney's first animated cartoon. In 1935, Major E. H. Armstrong developed the FM radio. In 1936 came Life magazine. In 1941, full commercial television was authorized. These are just some of the inventions that form a part of the "communications revolution" through which we are all living. To these, of course could be added the LP record, the tape recorder, the comic strip, the comic book, the paperback book. ...the point here is ...that the perceptual-cognitive effects on us of the form of these new languages be understood.

The invention of printing added a new element of power to the race. From that hour, in a most especial sense, the brain and not the arm, the thinker and not the soldier, books and not kings, were to rule the world; and weapons, forged in the mind, keen-edged and brighter than the sunbeam, were to supplant the sword and the battle-axe. […] Books,—lighthouses erected in the great sea of time,—books, the precious depositories of the thoughts and creations of genius,—books, by whose sorcery times past become time present, and the whole pageantry of the world's history moves in solemn procession before our eyes;—these were to visit the firesides of the humble, and lavish the treasures of the intellect upon the poor. Could we have Plato, and Shakespeare, and Milton, in our dwellings, in the full vigor of their imaginations, in the full freshness of their hearts, few scholars would be affluent enough to afford them physical support; but the living images of their minds are within the eyes of all. From their pages their mighty souls look out upon us in all their grandeur and beauty, undimmed by the faults and follies of earthly existence, consecrated by time.

A new technology sometimes creates more than it destroys. Sometimes, it destroys more than it creates. But it is never one-sided. The invention of the printing press is an excellent example. Printing fostered the modern idea of individuality but it destroyed the medieval sense of community and social integration. Printing created prose but made poetry into an exotic and elitist form of expression. Printing made modern science possible but transformed religious sensibility into an exercise in superstition. Printing assisted in the growth of the nation-state but, in so doing, made patriotism into a sordid if not a murderous emotion. Another way of saying this is that a new technology tends to favor some groups of people and harms other groups. School teachers, for example, will, in the long run, probably be made obsolete by television, as blacksmiths were made obsolete by the automobile, as balladeers were made obsolete by the printing press. Technological change, in other words, always results in winners and losers.

Every school boy and school girl who has arrived at the age of reflection ought to know something about the history of the art of printing, papermaking, and so forth. … All children will work better if pleased with their tools; and there are no tools more ingeniously wrought, or more potent than those which belong to the art of the printer. Dynasties and governments used to be attacked and defended by arms; now the attack and the defence are mainly carried on by types. To sustain any scheme of state policy, to uphold one administration or to demolish another, types, not soldiers, are brought into line. Hostile parties, and sometimes hostile nations, instead of fitting out martial or naval expeditions, establish printing presses, and discharge pamphlets or octavoes at each other, instead of cannon balls. The poniard and the stiletto were once the resource of a murderous spirit; now the vengeance, which formerly would assassinate in the dark, libels character, in the light of day, through the medium of the press. But through this instrumentality good can be wrought as well as evil. Knowledge can be acquired, diffused, perpetuated. An invisible, inaudible, intangible thought in the silent chambers of the mind, breaks away from its confinement, becomes imbodied in a sign, is multiplied by myriads, traverses the earth, and goes resounding down to the latest posterity.

The discovery of the art of Printing unbarred afresh the gates of Heaven, and let in that flood of light, of knowledge, and of wisdom, which enabled men to emancipate themselves again from the slavery of superstition—to take their proper place in the ranks of created beings—and in ennobling themselves, in gradually exalting their understandings and amending their hearts, to pay at length the worthiest homage to the goodness of their common Parent, and prove themselves to be—as the Almighty himself originally formed them—inferior only to the Angels.

Again, we should notice the force, effect, and consequences of inventions, which are nowhere more conspicuous than in those three which were unknown to the ancients; namely, printing, gunpowder, and the compass. For these three have changed the appearance and state of the whole world; first in literature, then in warfare, and lastly in navigation: and innumerable changes have been thence derived, so that no empire, sect, or star, appears to have exercised a greater power and influence on human affairs than these mechanical discoveries.

The invention of printing did away with anonymity, fostering ideas of literary fame and the habit of considering intellectual effort as private property. (p. 122)

It was early in the Seventeenth Century that Francis Bacon remarked on three recent inventions already transforming the world: the compass, gunpowder and the printing press. Now the links between the nations first forged by the compass have made us all citizens of the world, the hopes and threats of one becoming the hopes and threats of us all. In that one world's efforts to live together, the evolution of gunpowder to its ultimate limit has warned mankind of the terrible consequences of failure. And so it is to the printing press — to the recorder of man's deeds, the keeper of his conscience, the courier of his news — that we look for strength and assistance, confident that with your help man will be what he was born to be: free and independent.

Since the invention of the printing press by Johannes Gutenberg in the 15th century, mass media has ushered in a new era of collective consciousness – a set of shared beliefs, ideas, and moral attitudes that operate as a unifying force within society. Notwithstanding the danger of assimilation akin to the Borg in Star Trek, the Internet is accelerating collective consciousness and revolutionizing economy, politics, and education, among others.