Of Francesco Maria's literary pursuits we have various pleasing memorials. Not satisfied with the valuable library of MSS. that had descended to him from the Feltrian dukes, he formed another of standard printed works. Indeed, he became an assiduous book collector; and the letters of his librarian Benedetto Benedetti, in the Oliveriana Library, are full of lists which his agents in Venice, Florence, and even Frankfort are urged to supply. In his own voluminous correspondence, we find constant offers from authors of dedications or copies of their productions, the tone of which is highly complimentary to his taste for letters. In 1603, the Archbishop of Monreale, in Spain, transmits him the regulations he proposed to prescribe in bequeathing his library to a seminary he had founded in his diocese, expressing a hope that they might prove useful to the Duke's collection, "at this moment without parallel in the world."[85] Instead of quoting the vague testimony of courtly compliment, as to the use which this philosophic Prince made of these acquisitions, let us cite the brief records of his studies, preserved in his own Diary. In 1585, "terminated an inspection of the whole works of Aristotle, on which I have laboured no less than fifteen years, having had them generally read to me by Maestro Cesare Benedetti, of Pesaro." But his reading was not limited to such speculative topics, and we presently find him imbibing knowledge from a purer source. In 1587, "I finished my examination of the whole Bible, with various commentaries, on which I have spent three years and ten months." Again, on the "15th of December, 1598, completed my second perusal of the entire Bible, which I read this time with the commentary of Dionysio the Carthusian, occupying upon it eight years." A curious inference of the contemplative character of his mind may be drawn from the devices he successively assumed as emblematic of his feelings. In youth he used a flame vanishing into air, with the motto _Quies in sublime_, "There is rest on high:" after he succeeded to the dukedom, he took a terrestrial globe with the legend _Ponderibus librata suis_, "Self-poised." [Footnote 85: Bibl. Oliveriana, No. 375, vol. XI., p. 204.]