He [David Kaplan] characterized the doctrine in highly metaphorical terms, but the basic idea of his way of drawing the distinction was that the haecceitist allows, while the anti-haecceitist rejects, the reducible identification of individuals across possible worlds. According to Kaplan's anti-haecceitist, individuals in different possible worlds may be clothed in attributes which cause them to resemble one another closely. But there is no metaphysical reality of sameness or difference which underlies the clothes. The haecceitist, in contrast, holds that for individuals in different possible worlds, a common 'thisness' may underlie extreme dissimilarity or distinct thisness may underlie great resemblance.

He will chafe at the doctor's marrying my daughter.

...danger is that we may become bogged down in 'definitioneering'; that is, we may become advocates of special definitions that are arbitrarily stipulated.

The hero, who must have been only a very few years older than Tom himself, gave a cursory nod and a twiddle of his fingers, then turned to his left to address Daniel Lysons who did not answer but caught Tom's eye and raised his own eyebrow at this rudeness.