In his comparison of the four languages, when commenting upon that passage in the psalms, "In omnem terrarum exivit sonus eorum," he says, "This Christopher Columbus having acquired some rudiments of learning in his tender years, applied himself to navigation when he came to manhood, and went to Lisbon, where he learned cosmography from a brother who there made sea charts; in consequence of which improvement, and by discoursing with those who had sailed to St George del Mina in Africa, and through his own reading in cosmography, he entertained thoughts of sailing towards those countries which he afterwards discovered." Hence, contrary to the assertion of Justiniani, it appears from his own words that my father followed no handicraft or mechanic employment, but devoted his childhood to learning, his youth to navigation and cosmography, and his riper years to discoveries. Thus Justiniani convicts himself of falsehood, and proves himself inconsiderate, rash, and malicious. When he had occasion to speak of so renowned a person who reflected so great honour on his country, although the admirals parents had even been very mean, it had been more decent in mentioning his origin, as other authors have done, to have said that he was of low parentage or come of very poor people, instead of falsely calling him a mechanic, as he did in his Psalter, and afterwards in his Chronicle. Even supposing he had not contradicted himself, reason might have shewn that a man who had been bred up in a mechanical employment, must grow old in it to become a perfect master, and could not from his youth have travelled into so many countries, or have attained so much knowledge and learning as his actions demonstrate; more especially in those four principal sciences which were so indispensably necessary to fit him for what he performed, astronomy, cosmography, geometry, and navigation. It is not much to be wondered that Justiniani should be guilty of untruth in this circumstance, which is hidden, since he has inserted above a dozen falsehoods in half a sheet of paper in his Psalter, in matters concerning this discovery and navigation, which are well known. These I shall briefly mention, without staying to give him any answer, that I may not interrupt the series of the history; and because from its tenor, and by what has been written by others on that subject, the falsehood of his writing will distinctly appear.