V. C. Chappell; IV*—Stuff and Things, Proceedings of the Aristotelian Society, Volume 71, Issue 1, 1 June 1971, Pages 61–76, https://doi.org/10.1093/aristotelia.

The Essay concerning Human Understanding was published at the end of 1689.1 It sold well, and within three years Locke was planning revisions for a second edition. Among those whose “advice and assistance” he sought was the Irish scientist William Molyneux. Locke had begun a correspondence with Molyneux a few months before, after the latter had lavishly praised the Essay and its author in the Epistle Dedicatory of his own Dioptrica Nova, published early in 1692. Here was a man, Locke (...) concluded, whose judgment one could trust. He returned Molyneux’s compliment in the Essay’s new edition, calling him “that very Ingenious and Studious promoter of real Knowledge, ... whom I am proud to call my friend”. (shrink)

Ontology was never Hume's main interest, but he certainly had opinions as to what there is, and he often expressed these in his philosophical works. Indeed it seems clear that Hume changed his ontological views while writing the Treatise, and that not just one but two different ontologies are to be found there. The ontology of Parts I, II, and III of Book I is more or less Lockean. There are minds and their operations and qualities. There are physical entities, (...) bodily actions and qualities if not bodies over and above these. And there are further entities, called ideas by Locke and perceptions by Hume, that represent things other than themselves, both physical and mental, while existing in and being dependent upon minds. In Part IV of Book I, however, and especially in Sections 2 and 6, a new ontology appears, one that differs not only from the doctrine of the earlier sections of the Treatise but also from any that previous philosophers had held. According to this new ontology, there are only perceptions: all other sorts of things are absorbed by or reduced to these, or else simply eliminated. Berkeley had indeed assimilated bodies and the properties of bodies to perceptions, but he had kept minds as a distinct category of entity. Hume went the whole way, making everything perceptions. We might characterise this new ontology as trans-Berkeleyan, or call it, on account of its similarity to later doctrines so named, phenomenalism or neutral monism. (shrink)

I do not think it would be fair for me to reply to Professor Spiegelberg’s rejoinder without giving him the chance to reply in turn to my reply. The first speaker in a symposium should always, I believe, have the last word. But by that principle I am entitled to a reply to Professor Chisholm, for whom, in his original paper, I was a primary target.

A more significant indication of the revived interest in Whitehead, however, is the number of first-rate studies of his philosophy which have been produced in recent years. Three have been published; each is superior in scope, depth, and philosophic insight to the studies hitherto available. In addition, two more works are announced for early publication, one of which at least is of the same high caliber. The authors of these recent books are neither apologists nor detractors, neither loyal disciples nor (...) ideological enemies of their subject. In the main they are themselves philosophers, concerned to understand and to help others understand the constructions of a philosophic master builder, one who, unfortunately, did not himself do all he might have done to facilitate such understanding. We have long needed studies of the sort now appearing. More work is needed for our comprehension to be complete, and our assessments sure. But these recent books have brought these goals within striking distance. (shrink)

2. The equal status mentioned in Thesis 2 need not mean, "equally concrete" or "inclusive," but only, "equally real," where "real" means having a character of its own with reference to which opinions can be true or false. But becoming or process is alone fully concrete or inclusive, since if A is without becoming, and B becomes, then the togetherness of AB also becomes. A new constituent means a new totality. In this sense, becoming is the ultimate principle.