"Although the final remarks in this volume were written less than a fortnight before Wittgenstein's death, the work as a whole has all the forcefulness, originality and richness that characterise his greatest works. The remarks in this volume do not merely repeat points made elsewhere, nor do they merely supplement works already published. The volume incorporates genuinely new material that does a great deal to reveal both the subtlety of Wittgenstein's thoughts on subjectivity and the logic of psychological concepts, and the workings of his philosophical method." Mind