 In 1959 Strawson published his second book Individuals. It is ambitious, abstract, wide ranging and original, and it has continued to be read and discussed, especially the first half. Strawson coined the terms ‘descriptive metaphysics’ to capture his task and opposed that to what he called ‘revisionary metaphysics’. By using ‘metaphysics’ Strawson was primarily emphasising the abstractness and generality of his questions. A consequence of this generality, Strawson suggests, is that the methods needed for settling them are different in kind from those employed in debating less abstract conceptual or philosophical questions. One such method, employed in chapter 2, when exploring the sound world, involves imagining creatures with quite different experiences from our own, and trying to determine their capacities for thinking about objects. By calling it ‘descriptive’ Strawson means, in part, that he is not recommending revisions or additions to how we think. But the term also signals Strawson’s conviction that there is a shared and universal conceptual scheme which we human beings have, and know that we have, and for which no justification in terms of more fundamental concepts or claims can be given. He writes: