In attempting to estimate the value of his work as a classical teacher, it must be remembered that he was the direct heir of the system introduced into Trinity College by Hare and Thirlwall. We are not aware that he attended the lectures of the former, though he may well have done so, but we have heard from his own lips that he derived great benefit from those of the latter, which were as systematic as Hare’s had been desultory. Those distinguished scholars, while not neglecting an author’s language, were careful to direct the attention of their pupils to his matter. They did not waste time unduly on the theories of this or that commentator, though they had carefully digested them, but they showed how their author might be made to explain himself. In fine, the discovery of his thoughts, not the dry elucidation of his words, was the object of their teaching. Translation, again, received from them a larger share of attention than it had done from their predecessors. In this particular Thompson attained an unrivalled excellence. His translations never smelt of the lamp, though it may be easily imagined that this perfection had not been arrived at without much preliminary study. But, when presented to the class, toil was carefully kept out of sight. The lecturer stood at his desk and read his author into English, with neither manuscript nor even notes before him, as though the translation was wholly unpremeditated, in a style which reflected the original with exact fidelity, whatever the subject selected might be. He seemed equally at home in a dialogue of Plato, a tragedy of Euripides in which, like the _Bacchae_, the lyric element predominates, or a comedy of Aristophanes. He did not labour in vain. The lecture-room was crowded with eager listeners; and the happiest renderings were passed from mouth to mouth, and so made the round of the University. But we are glad to think that his fame as a scholar rests on a firmer foundation than traditions of the lecture-room, however brilliant. The author of his choice was Plato, and though ill-health and a too fastidious criticism of his own powers, which made him unwilling to let a piece of work go out of his hands so long as there was any chance of making it better, stood in the way of the complete edition, or, at any rate, translation, of the author, which he once meditated, yet he has left enough good work behind him to command the gratitude of future scholars. To this study he was doubtless directed, in the first instance, by natural predilection; but, if we mistake not, he was confirmed in it by the scholars above-mentioned, either directly or by their suggesting to him the study of Schleiermacher, whose writings were first introduced to English readers by their influence. That critic’s theory—that Plato had a comprehensive and precise doctrine to teach, which he deliberately concealed under the complicated machinery of a series of dialogues, leaving his readers to combine and interpret for themselves the dark hints and suggestions afforded to them—was followed by Thompson with great learning, unerring tact, and firm grasp. His editions of the _Phaedrus_ (1868) and the _Gorgias_ (1871) are models of what an edition, based on these principles, ought to be; and the paper on the _Sophistes_, long lost sight of in the _Transactions_ of the Cambridge Philosophical Society, but republished in the _Journal of Philology_ (1879), is a masterpiece. Nor must we omit an introductory lecture on the _Philebus_, written in 1855, and published in the same journal (1882), which is a piece of literature as well as a piece of criticism; or the learned and instructive notes to Archer Butler’s _Lectures on the History of Ancient Philosophy_, the first edition of which appeared in 1855.