But occasionally even yet he aroused himself to effort. In 1765 appeared his long-promised edition of Shakspere. It displays in places much of the sound sense which is one of Johnson's most distinguishing merits, as in the terse exposure of the fallacies of the pseudo-classic theory of the three dramatic unities, and it made some interpretative contributions; but as a whole it was carelessly and slightly done. Johnson's last important production, his most important really literary work, was a series of 'Lives of the English Poets' from the middle of the seventeenth century, which he wrote for a publishers' collection of their works. The selection of poets was badly made by the publishers, so that many of the lives deal with very minor versifiers. Further, Johnson's indolence and prejudices are here again evident; often when he did not know the facts he did not take the trouble to investigate; a thorough Tory himself he was often unfair to men of Whig principles; and for poetry of the delicately imaginative and romantic sort his rather painfully practical mind had little appreciation. Nevertheless he was in many respects well fitted for the work, and some of the lives, such as those of Dryden, Pope, Addison and Swift, men in whom he took a real interest, are of high merit. Johnson's last years were rendered gloomy, partly by the loss of friends, partly by ill-health and a deepening of his lifelong tendency to morbid depression. He had an almost insane shrinking from death and with it a pathetic apprehension of future punishment. His melancholy was perhaps the greater because of the manly courage and contempt for sentimentality which prevented him from complaining or discussing his distresses. His religious faith, also, in spite of all intellectual doubts, was strong, and he died calmly, in 1784. He was buried in Westminster Abbey.