We should be wary, therefore, how we spill that seasoned life of man, preserved and stored up in books, since we see a kind of homicide may be thus committed, that strikes at that ethereal essence, the breath of reason itself, and slays an immortality rather than a life.
In Athens, where books and wits were ever busier than in any other part of Greece, I find but only two sorts of writings which the magistrate cared to take notice of--those either blasphemous and atheistical, or libellous. The Romans, for many ages trained up only to a military roughness, knew of learning little. There libellous authors were quickly cast into prison, and the like severity was used if aught were impiously written. Except in these two points, how the world went in books the magistrate kept no reckoning.
By the time the emperors were become Christians, the books of those whom they took to be grand heretics were examined, refuted, and condemned in the general councils, and not till then were prohibited.
As for the writings of heathen authors, unless they were plain invectives against Christianity, they met with no interdict that can be cited till about the year 400. The primitive councils and bishops were wont only to declare what books were not commendable, passing no further till after the year 800, after which time the popes of Rome extended their dominion over men's eyes, as they had before over their judgments, burning and prohibiting to be read what they fancied not, till Martin V. by his Bull not only prohibited, but was the first that excommunicated the reading of heretical books; for about that time Wickliffe and Huss, growing terrible, drove the papal court to a stricter policy of prohibiting. To fill up the measure of encroachment, their last invention was to ordain that no book, pamphlet, or paper should be printed (as if St. Peter had bequeathed them the keys of the press also out of Paradise), unless it were approved and licensed under the hands of two or three glutton friars.
Not from any ancient state or polity or church, nor by any statute left us by our ancestors, but from the most tyrannous Inquisition have ye this book-licensing. Till then books were as freely admitted into the world as any other birth. No envious Juno sat cross-legged over the nativity of any man's intellectual offspring. That ye like not now these most certain authors of this licensing Order, all men who know the integrity of your actions will clear ye readily.