The question is raised whether there are forms of reasoning peculiar to philosophy. But if one considers what has been written over the centuries in the name of philosophy, it hardly seems possible that there is any form of ‘reasoning’, however widely one uses that word, which has not been employed. Formal deductive reasoning, appeals to empirical data, arguments from the way in which language is used, arguments from analogy—it is not difficult to think of examples of all of these (...) and more. How effectively or successfully they have been used is, of course, another matter. (shrink)

I cannot forbear adding to these reasonings an observation, which may, perhaps, be found of some importance. In every system of morality, which I have hitherto met with, I have always remark'd, that the author proceeds for some time in the ordinary way of reasoning, and establishes the being of a God, or makes observations concerning human affairs; when of a sudden I am surpriz'd to find, that instead of the usual copulations of propositions, is , and is not , (...) I meet with no proposition that is not connected with an ought , or an ought not. This change is imperceptible; but is, however, of the last consequence. For as this ought, or ought not, expresses some new relation or affirmation, 'tis necessary that it shou'd be observ'd and explain'd; and at the same time that a reason should be given, for what seems altogether inconceivable, how this new relation can be a deduction from others, which are entirely different from it. But as authors do not commonly use this precaution, I shall presume to recommend it to the readers; and am persuaded, that this small attention wou'd subvert all the vulgar systems of morality, and let us see, that the distinction of vice and virtue is not founded merely on the relations of objects, nor is perceiv'd by reason. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:53. AN INDEX OF HUME'S REFERENCES IN A TREATISE OF HUMAN NATURE The index below of Hume's references in the Treatise te the works of other authors excludes those which are accurate and full in his text (of which there are few) and those which are so general, e.g., to Spinoza's atheism, that no passage is specifiable. Hume mentions other writings, for which this index is compiled, in several (...) different ways. Occasionally he mentions the author's name, the title of his book and gives a reference which is less specific than it could be. These have been identified. Often he mentions an author's name only, e.g., de Retz, and in such cases the fullest possible reference has been given. One of Hume's notable intellectual gifts was his ability to distil several pages of a book into one or two sentences of crisp and accurate synthesis. (This skill is most apparent in his summaries of articles in Bayle' s Dictionary in his "Notes on Philosophy", of which the manuscript is in the Royal Society of Edinburgh Library.) In these instances, page references are impossible and the closest indication one can give is a section or chapter. Some of his references are anonymous, e.g., as an 'elegant writer' says, and so are some quotations. These have been identified with one exception. One anonymous reference (number 24 below) requires explanation because it is both anachronistic and interesting. Hume refers to an observation by "a late eminent philosopher". It is anachronistic because the book to which he refers was published after the Treatise; it is interesting because it provides further evidence of Hutcheson's influence on Hume and the latter' s regard for him. The explanation, for Hutcheson was still alive when Vol.11 of the Treatise appeared in 1739, is that 'late' is here being used in the sense of 'recent' - Hutcheson himself uses the word in the same way in referring to Mandeville when the latter was 54. alive. (An enquiry concerning moral good and evil. Section 1, VI.) Further, the System circulated widely among Hutcheson's friends in Scotland and over so many years that it finally appeared posthumously. That Hume could not cite a published work also accounts for the anonymity of the reference to someone he admired. It is often impossible to determine in which language or in which edition Hume read a particular author. Where there is evidence as to which language he used, the title has been given in that language. There are now so many extant editions of the Treatise that Volume, Part, Chapter and Section references are given, as well as the pagination of Selby-Bigge' s edition, so that readers of other editions may be able to use the index. 1.Vol. 1. Title-page. Tacitus, The Histories, Bk. I. 1. 2.Part 1, Sect. 1, p. 2, n. John Locke, An Essay concerning Human Understanding, Bk. I, Chap. I, 8. 3.Sect. VII, p. 17, n. George Berkeley, A Treatise concerning the Principles of Human Knowledge, Introductixi, Sect. 7, e_t seq. 4.Part II, Sect. II, p. 30, n. Nicolas de Malezieu, Elementa Geometrica. 5.Sect. Ill, p. 35, n. John Locke, Essay, Bk. II, Chap. XIV. 6.Sect. IV, p. 43, n. Antoine Arnauld, La logique ou l'art de penser. Part I, Chap. 5. (In some editions Pierre Nicole is named as co-author. The book is also known as the Port Royal Logic). 7.Sect. IV, p. 46, n. Isaac Barrow, Mathematical Lectures. 8.Part III, Sect. Ill, p. 80, n. Thomas Hobbes, Elements of Philosophy, Part Second, Chap. 9. And Tripos : in Three Discourse. Ill, of Liberty and Necessity. 55. Sect. Ill, p. 80, n. e.g., Samuel Clarke, A Demonstration of the Being and Attributes of God, Props. I-III, et. seq. 10.Sect. Ill, p. 81, n. John Locke, Essay, Bk. IV, Chap. X. 11.Sect. VIII, p. 100 and appendix Vol. Ill, p. 630. Cicero, De Finibus Bonorum et Malorum, Bk. V. 1.2. 12.Sect. XIII, p. 153. Jean Francois Paul de Gondi, Cardinal de Retz, Mémoires, Bk. III. The second 'observation' is from Book... (shrink)

I cannot forbear adding to these reasonings an observation, which may, perhaps, be found of some importance. In every system of morality, which I have hitherto met with, I have always remark'd, that the author proceeds for some time in the ordinary way of reasoning, and establishes the being of a God, or makes observations concerning human affairs; when of a sudden I am surpriz'd to find, that instead of the usual copulations of propositions, is, and is not, I meet (...) with no proposition that is not connected with an ought, or an ought not. This change is imperceptible; but is, however, of the last consequence. For as this ought, or ought not, expresses some new relation or affirmation, 'tis necessary that it shou'd be observ'd and explain'd; and at the same time that a reason should be given, for what seems altogether inconceivable, how this new relation can be a deduction from others, which are entirely different from it. But as authors do not commonly use this precaution, I shall presume to recommend it to the readers; and am persuaded, that this small attention wou'd subvert all the vulgar systems of morality, and let us see, that the distinction of vice and virtue is not founded merely on the relations of objects, nor is perceiv'd by reason. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:73. More Hume autograph marginalia in a first edition of the "Treatise". Two sets of marginalia by Hume in copies of the first edition of A Treatise of Human Nature have been published. One is a copy in the British Library. This has 1 2 been described by Connon and Nidditch and was, no doubt, one, at least, of the copies which Hume kept for himself. The marginalia are (...) so extensive as to suggest that, at the time he made them, he may have been hoping for an opportunity to publish a second edition of the Treatise. The other copy with marginalia, a presentation copy to his kinsman, Henry Home, Lord Karnes, has been described by Wallace Nethery, Librarian of the Hóose Library of Phil3 osophy and by Nidditch. There is a third copy of the Treatise with marginalia in Hume's hand which was a pre4 sentation copy to Pope. The Pope copy is inscribed on the flyleaf of Volume I in Hume's handwriting, "To Alexander* Rope Esq at Twickenham". There are 18 corrections in Volume I and 5 in Volume II. They are as follows, the first word or phrase being the error, the second the correction. The first word is usually scratched out in the text and the correction inserted in the margin but sometimes insertions are simply made within the text. 1st EditionSelby-Bigge 1.12.252.8'the' Our' 1.35.2316.1'of 'or' 1.57.428.18'these* 'those' 1.58.829.6'part' 'parts' 1.111.2860.27'defection' 'dissection' 1.126.569.14'it' deleted 1.154.486.1'worn out' "worn it out' 1.240.7136.9'as' 'when' 1.256.21145.28'evidence' 'testimony' 74. ï. 273. 20155.24'instance' 'instances' 1.280.16159.33'gave it's' 'gave it its' Ï.286.25163.22-23'upon observation' 'upon the observation' 1.287.16164.2'cause' 'case' 1.288.5164.15'results* 'result' 1.293.10167.14'exists' 'exist' 1.343.17196.22'opening I' 'opening it I' 1.402.16231.6'presses' 'press' 1.453.1260.34'what the' 'what is the' 11.108.10 336.24 "affections wheel' 'affections to wheel' II. 120. 4 343.19 'cause' 'causes' 11.228.23404.15 'One' Our' 11.229.19 404.32 'and proceed' 'and practice proceed' 11.271.24428. 20 'considerably' 'sensibly' In addition, someone, perhaps Hume, has marked a printer's error where a letter has slipped. (Vol. I, p. 466. 3). It is not possible to find out the date upon which Hume gave this copy to Pope from the published correspondence of either party. Pope died in 1744 and Hume may have sent him a copy of the Treatise because of the former's literary renown and because the publishers had a large number of unsold copies on their hands. From the fact, among others, that the footnote on Volume II, p. 168 (Selby-Bigge, p. 371) is missing from both the Pope1 and the Karnes copies, it is clear that Volumes I and II were, as one might expect of presentations, in each case early issues or states. It is more than likely that Hume made other presents of the Treatise to friends and people he admired such as Francis Hutcheson and Bishop Butler, and these 75. would probably have included marginalia along the same lines as the Karnes and Pope copies. For what Hume substantially did in giving these copies was to perform an act of courtesy; i.e., to incorporate items from the errata tables into the text. The Pope copy is the least important and interesting of those noticed so far, for it contains only one correction which is not included in the errata tables - the second item listed above in Volume I - and not all of them. The percentage of the changes called for in the errata tables which are made by Hume in the text diminishes markedly as between Volumes I and II. Moreover, there are no marginalia in the third volume, 'Of Morals', and this is perhaps to be explained by Hume's becoming bored with this somewhat superfluous task, even if it was a politeness and the fact... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:73. More Hume autograph marginalia in a first edition of the "Treatise". Two sets of marginalia by Hume in copies of the first edition of A Treatise of Human Nature have been published. One is a copy in the British Library. This has 1 2 been described by Connon and Nidditch and was, no doubt, one, at least, of the copies which Hume kept for himself. The marginalia are (...) so extensive as to suggest that, at the time he made them, he may have been hoping for an opportunity to publish a second edition of the Treatise. The other copy with marginalia, a presentation copy to his kinsman, Henry Home, Lord Karnes, has been described by Wallace Nethery, Librarian of the Hóose Library of Phil3 osophy and by Nidditch. There is a third copy of the Treatise with marginalia in Hume's hand which was a pre4 sentation copy to Pope. The Pope copy is inscribed on the flyleaf of Volume I in Hume's handwriting, "To Alexander* Rope Esq at Twickenham". There are 18 corrections in Volume I and 5 in Volume II. They are as follows, the first word or phrase being the error, the second the correction. The first word is usually scratched out in the text and the correction inserted in the margin but sometimes insertions are simply made within the text. 1st EditionSelby-Bigge 1.12.252.8'the' Our' 1.35.2316.1'of 'or' 1.57.428.18'these* 'those' 1.58.829.6'part' 'parts' 1.111.2860.27'defection' 'dissection' 1.126.569.14'it' deleted 1.154.486.1'worn out' "worn it out' 1.240.7136.9'as' 'when' 1.256.21145.28'evidence' 'testimony' 74. ï. 273. 20155.24'instance' 'instances' 1.280.16159.33'gave it's' 'gave it its' Ï.286.25163.22-23'upon observation' 'upon the observation' 1.287.16164.2'cause' 'case' 1.288.5164.15'results* 'result' 1.293.10167.14'exists' 'exist' 1.343.17196.22'opening I' 'opening it I' 1.402.16231.6'presses' 'press' 1.453.1260.34'what the' 'what is the' 11.108.10 336.24 "affections wheel' 'affections to wheel' II. 120. 4 343.19 'cause' 'causes' 11.228.23404.15 'One' Our' 11.229.19 404.32 'and proceed' 'and practice proceed' 11.271.24428. 20 'considerably' 'sensibly' In addition, someone, perhaps Hume, has marked a printer's error where a letter has slipped. (Vol. I, p. 466. 3). It is not possible to find out the date upon which Hume gave this copy to Pope from the published correspondence of either party. Pope died in 1744 and Hume may have sent him a copy of the Treatise because of the former's literary renown and because the publishers had a large number of unsold copies on their hands. From the fact, among others, that the footnote on Volume II, p. 168 (Selby-Bigge, p. 371) is missing from both the Pope1 and the Karnes copies, it is clear that Volumes I and II were, as one might expect of presentations, in each case early issues or states. It is more than likely that Hume made other presents of the Treatise to friends and people he admired such as Francis Hutcheson and Bishop Butler, and these 75. would probably have included marginalia along the same lines as the Karnes and Pope copies. For what Hume substantially did in giving these copies was to perform an act of courtesy; i.e., to incorporate items from the errata tables into the text. The Pope copy is the least important and interesting of those noticed so far, for it contains only one correction which is not included in the errata tables - the second item listed above in Volume I - and not all of them. The percentage of the changes called for in the errata tables which are made by Hume in the text diminishes markedly as between Volumes I and II. Moreover, there are no marginalia in the third volume, 'Of Morals', and this is perhaps to be explained by Hume's becoming bored with this somewhat superfluous task, even if it was a politeness and the fact... (shrink)