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Leibniz and the Ideas of Sensible Qualities

Published online by Cambridge University Press:  08 January 2010

Extract

In order to understand the thoughts of Leibniz it is important to stop putting Leibniz into the convenient pigeon-hole of rationalist, and stop thinking of him merely as the metaphysician and constructor of systems so vividly ridiculed by Voltaire in Candide. Most important of all, one should not attempt to see Leibniz's philosophy as a completely articulated and integrated whole or as built on three or five metaphysical and logical principles. It is better to remember that Leibniz was a very prolific writer, who was interested in the most varied aspects of philosophy, logic, mathematics, natural science, jurisprudence, history and philology: a man who was constantly trying to work out a large number of heterogeneous theories and thoughts. The collected editions of his writings make up more than twenty thick volumes, and these hardly exhaust his manuscripts. Yet this was a man who published only one book in his lifetime.

Type
Papers
Copyright
Copyright © The Royal Institute of Philosophy and the contributors 1971

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References

page 50 note 1 I was helped in forming the thoughts expressed in the first part of this paper by members of a graduate seminar at Cornell University in Autumn 1969, and especially by discussion with Paul Fischler. I profited from discussing the problem raised in the second part of this paper with Bas Van Fraassen, Hans Kamp and David K. Lewis.

page 50 note 2 New Essays Concerning Human Understanding, bk II, ch. xxix, §3, §4, §5; bk IV, ch. xvii §13.

page 51 note 1 Letter to Queen Sophie Charlotte of Prussia (1702). P. Wiener (ed.), Collected Writings of Leibniz, p. 355.Google Scholar

page 51 note 2 Ibid.

page 51 note 3 Ibid.

page 52 note 1 It is important to recall that contrary to widespread misunderstanding, Leibniz's so-called ‘substitutivity salva veritate’ principle is meant by him to define the identity of terms, which he says are ‘concepts or ideas’, not the identity of things.

page 52 note 2 New Essays, III iv 16.Google Scholar

page 52 note 3 New Essays, II ix 21.Google Scholar

page 53 note 1 Leibniz, ‘Elementa Physica’, 1683–1684. In Leibniz, , Philosophical Papers and Letters, trans. Loemker, Leroy E. (Humanities Press, 1970).Google Scholar

page 54 note 1 Leibniz, , New Essays, IV vi 8.Google Scholar

page 54 note 2 Ibid., III xi 24.

page 54 note 3 Ibid., II viii 13, IV vi 7.

page 54 note 4 Ibid., II viii 10.

page 54 note 5 Lenin's Theory of Knowledge, in Macdonald, Margaret (ed.), Philosophy and Analysis (Oxford, 1954).Google Scholar

page 56 note 1 New Essays, III ii 3.Google Scholar

page 56 note 2 Couturat, , Opuscules et Fragments Mditsde Leibniz, p. 261.Google Scholar

page 57 note 1 Leibniz writes in ‘Dialogue on the Connection between Things and Words’ of the identity of the relation which holds between the name ‘Lucifer’ and the word-stems ‘lux’ and ‘fero’ in Latin, and between the name ‘φωσφορος’ and the word-stems ‘φς’ and ‘φρω’ in Greek.

page 57 note 2 ‘On Properties’, in Essays in Honor of Carl G. Hempel (Reidel, 1969).Google Scholar

page 59 note 1 Some writers have given this example as a clear case where properties are nomologically coextensive but not identical. I do not think that it is at all clear whether these predicates do ascribe one and the same property to things or not.

page 59 note 2 In conversations, and in a slightly different formulation in ‘How to Define Theoretical Terms’, in Journal of Philosophy, 9 07 1970.Google Scholar

page 59 note 3 Ibid., p. 437.

page 60 note 1 Letter to Coste, 1707; Leibniz Selections, ed. Wiener, p. 480.Google Scholar

page 60 note 2 Hilary Putnam, art. cit.

page 62 note 1 Carnap, Rudolf, ‘Meaning and Synonymy in Natural Languages’, in Philosophical Studies, vol. VI no. 3 (04, 1955).Google Scholar