This age groans under a surcharge of new books, that, though the many good ones lately published do much to balance the great swarms of ill, or at least needless ones; yet all men complain of the unnecessary charge and trouble many new books put them to: the truth of it is, printing is a trade, and the presses must be kept going[...]

— G Burnet, from the preface to "The Life of God in the Soul of Man", circa 1650.