Virgilius, Bishop of Saltzburg, having asserted that there existed antipodes, the Archbishop of Mentz declared him a heretic; and the Abbot Trithemius, who was fond of improving steganography or the art of secret writing, having published several curious works on this subject, they were condemned, as works full of diabolical mysteries; and Frederic II., Elector Palatine, ordered Trithemius's original work, which was in his library, to be publicly burnt. Galileo was condemned at Rome publicly to disavow sentiments, the truth of which must have been to him abundantly manifest. "Are these then my judges?" he exclaimed, in retiring from the inquisitors, whose ignorance astonished him. He was imprisoned, and visited by Milton, who tells us, he was then _poor_ and _old_. The confessor of his widow, taking advantage of her piety, perused the MSS. of this great philosopher, and destroyed such as in his _judgment_ were not fit to be known to the world! Gabriel Naudé, in his apology for those great men who have been accused of magic, has recorded a melancholy number of the most eminent scholars, who have found, that to have been successful in their studies, was a success which harassed them with continual persecution--a prison or a grave! Cornelius Agrippa was compelled to fly his country, and the enjoyment of a large income, merely for having displayed a few philosophical experiments, which now every school-boy can perform; but more particularly having attacked the then prevailing opinion, that St. Anne had three husbands, he was obliged to fly from place to place. The people beheld him as an object of horror; and when he walked, he found the streets empty at his approach. In those times, it was a common opinion to suspect every great man of an intercourse with some familiar spirit. The favourite black dog of Agrippa was supposed to be a demon. When Urban Grandier, another victim to the age, was led to the stake, a large fly settled on his head: a monk, who had heard that Beelzebub signifies in Hebrew the God of Flies, reported that he saw this spirit come to take possession of him. M. de Langier, a French minister, who employed many spies, was frequently accused of diabolical communication. Sixtus the Fifth, Marechal Faber, Roger Bacon, Cæsar Borgia, his son Alexander VI., and others, like Socrates, had their diabolical attendant.