And here gratitude demands that I should publicly acknowledge the very handsome and liberal manner in which I was received by the University of Oxford, and by the principal librarian and sub-librarians of the Bodleian library, during the time that I made the above mentioned extracts. In the first place I have to acknowledge the very polite attention which was paid to me by Dr. Jackson,[31] dean of Christ-church. In the second place, the liberty of attendance at the Bodleian library, and the accommodation which was there afforded me, by the librarians of that excellent collection, demand from me no small tribute of praise. And, above all, the very liberal manner in which I was received by the fellows of New College, with whom I resided for three weeks, and from whom I experienced even Grecian hospitality, will, I trust, be as difficult a task for time to obliterate from my memory, as it would be for me to express it as it deserves. ----------------- [31] I was much pleased to find that this very respectable prelate is a great admirer of Aristotle, and that extracts from the Commentaries of Simplicius and Ammonius on the Categories of that philosopher, are read by his orders in the college of which he is the head. ----------------- With respect to the faults which I may have committed in this translation (for I am not vain enough to suppose it is without fault), I might plead as an excuse, that the whole of it has been executed amidst severe endurance from bodily infirmity and indigent circumstances; and that a very considerable part of it was accomplished amidst other ills of no common magnitude, and other labors inimical to such an undertaking. But whatever may be my errors, I will not fly to calamity for an apology. Let it be my excuse that the mistakes I may have committed in lesser particulars, have arisen from my eagerness to seize and promulgate those great truths in the philosophy and theology of Plato, which though they have been concealed for ages in oblivion, have a subsistence coeval with the universe, and will again be restored, and flourish for very extended periods, through all the infinite revolutions of time. In the next place, it is necessary to speak concerning the qualifications requisite in a legitimate student of the philosophy of Plato, previous to which I shall just notice the absurdity of supposing that a mere knowledge of the Greek tongue, however great that knowledge may be, is alone sufficient to the understanding the sublime doctrines of Plato; for a man might as well think that he can understand Archimedes without a knowledge of the elements of geometry, merely because he can read him in the original. Those who entertain such an idle opinion, would do well to meditate on the profound observation of Heraclitus, "that polymathy does not teach intellect," ([Greek: Polymathic noon ou didaskei]).