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. _III.--The Futility of Prohibition_ But some will say, "What though the inventors were bad, the thing, for all that, may be good?" It may be so, yet I am of those who believe it will be a harder alchemy than Lullius ever knew to sublimate any good use out of such an invention. Good and evil in the field of this world grow up together almost inseparably. As the state of man now is, what wisdom can there be to choose, what continence to forbear, without the knowledge of evil? I cannot praise a fugitive and cloistered virtue, unexercised and unbreathed, that never sallies out and sees her adversary, but slinks out of the race, where that immortal garland is to be run for, not without dust and heat. That which purifies us is trial, and trial is by what is contrary. And how can we more safely, and with less danger scout into the regions of sin and falsity than by reading all manner of tractates and hearing all manner of reason? And this is the benefit which may be had of books promiscuously read.