Hostname: page-component-848d4c4894-8bljj Total loading time: 0 Render date: 2024-06-20T11:43:45.405Z Has data issue: false hasContentIssue false

Thomistic Reflections on Teleology and Contemporary Biological Research

Published online by Cambridge University Press:  01 January 2024

Michael W. Tkacz*
Affiliation:
Gonzaga University

Abstract

Modern biologists often claim to be committed to a strong reductionist conception of scientific explanation, in contrast to the teleological explanations of medieval natural philosophers. Attention to the actual explanatory strategies used in contemporary biological research, however, reveals a dependence on final cause explanations. A good example can be found in adaptation studies where explanation is typically in terms of optimal design models. Such optimality models are teleological precisely in the way Thomas Aquinas and Albertus Magnus insisted explanation of natural forms must be. Consequently, the non-reductionist conception of final cause defended by Neo-Aristotelian philosophers of science is entirely consistent with common modes of explanation used by contemporary biological researchers.

Type
Original Article
Copyright
Copyright © 2013 The Dominican Council.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 “Cum autem dicimus cum causam cognoscimus, non causas in plurali: ideo quia una est principalis causa, quae est causa causarum, quae est finis, per quam potissime scitur; quia unumquodque maxime fine suo et optimo essentiali determinatur et scitur. Dicitur etiam causa ut subjecto intelligatur una: quia tres quae principium sunt sciendi, in unam coincidunt, efficiens et forma et finis, ut dicit Aristoteles in secundo Physicorum. Ad huc autem quamvis multae sint causae alicujus, una autem semper est completiva quae potissime est causa, et ad illam respiciendo dicitur, quod scire est cum causam cognoscimus.” Posteriora analytica I, tr. 2, c. 1 (Opera omnia, ed. A. Borgnet [Paris, 1890] 2:23a).

2 “. . . et quia natura operantur propter aliquid, ut infra probabitur, necesse est quod ad naturalem pertineat considerare formam non solum inquantum est forma, sed etiam inquantum est finis.” Expositio in libros Physicorum Aristotelis II, lect. 11 [246] (ed. Marietti, pp. 118–19).

3 “Et dicit quod etiam naturalis demonstrat aliquando aliquid esse, quia dignius est quod sic sit; sicut si demonstret quod dentes anteriores sunt acuti, quia melius est sic esse ad dividendum cibum, et natura facit quod melius est.” Expositio in Physicorum II, lect. 11 [249] (ed. Marietti, p. 119).

4 Parts of Animals III, ch. 1 (661a34f); Albert, De animalibus XII, tr. 3, c. 6 (tr. Kitchell and Resnick, p. 975).

5 For a classical Aristotelian account of a scientific research program see my Albert the Great and the Revival of Aristotle's Zoological Research Program’, Vivarium 45 (2007), pp. 3068CrossRefGoogle Scholar.

6 For discussion see Ruse, Michael, Philosophy of Biology Today (Albany, 1988)Google Scholar, especially pp. 43–49 and Mayr, Ernst, ‘The Idea of Teleology’, Journal of the History of Ideas 53 (1992), pp. 117–35CrossRefGoogle Scholar.

7 Lewontin, Richard, ‘Adaptation’, Scientific American 239.3 (1978), pp. 212–30CrossRefGoogle ScholarPubMed.

8 See my Neo-Darwinians, Aristotelians, and Optimal Design’, The Thomist 62 (1998), pp. 355–72CrossRefGoogle Scholar.

9 The classic critique is that of Stephen J. Gould and Richard C. Lewontin, ‘The Spandrels of San Marco and the Panglossian Paradigm: A Critique of the Adaptationist Programme’, Proceedings of the Royal Society London B205 (1979), pp. 581–98. See also the contributions to The Latest on the Best: Essays on Evolution and Optimality, ed. Dupré, J. (Cambridge, Mass., 1987)Google Scholar.

10 See, for example, Orzack, Steven Hecht and Sober, Elliott, ‘Optimality Models and the Test of Adaptationism’, The American Naturalist 143 (1994), pp. 361–80CrossRefGoogle Scholar and the reply by Brandon, Robert N. and Rausher, Mark D., ‘Testing Adaptationism: A Comment on Orzack and Sober’, The American Naturalist 148 (1996), pp. 189201CrossRefGoogle Scholar.

11 There is evidence that a debate over such problems was carried on within the Aristotelian tradition. See Lennox, James G., ‘Theophrastus on the Limits of Teleology’ in Theophrastus of Eresus: On His Life and Work, ed. Fortenbaugh, W. W., Huby, P. M., and Long, A. A. (New Brunswick: Rutgers University Studies in Classical Humanities, 1985), v. 2, pp. 143–63Google Scholar.

12 The extensive recent literature on Aristotle's teleology has emphasized its naturalism; see Allan Gotthelf, ‘Report on Recent Work and an Additional Bibliography’ appended to David M. Balme's translation of De partibus animalium I and De generatione animalium I (Oxford, 1992)Google Scholar; see also Gotthelf's, Understanding Aristotle's Teleology’ in Final Causality in Nature and Human Affairs, ed. Hassing, Richard, Studies in Philosophy and the History of Philosophy, 30 (Washington, DC, 1997), 7182Google Scholar and the critical review of Lennox, James G., Aristotle's Philosophy of Biology: Studies in the Origins of Life Science (Cambridge, 2001), pp. 225–28Google Scholar.

13 On Respiration 3 (471b24–29); Albert, De spiritu et respiratione (ed. Borgnet 9:213–55).

14 See, for example, Preuss, Anthony, Science and Philosophy in Aristotle's Biological Works (Hildesheim, 1975), p. 251Google Scholar and Lennox, Aristotle's Philosophy of Biology, p. 259.

15 The recent work of Rom Harré on a realist account of productive causality is an example; see his foundational study The Principles of Scientific Thinking (Chicago, 1970)Google Scholar. For a comprehensive Neo-Aristotelian account see Wallace, William A., The Modeling of Nature (Washington, DC, 1997)Google Scholar.

16 Holling, Crawford S., ‘The Analysis of Complex Population Processes’, Canadian Entomologist 96 (1964), pp. 335–47CrossRefGoogle Scholar. For a general treatment of geometrical optimal designs see his Cross-Scale Morphology, Geometry, and Dynamics of Ecosystems’, Ecological Monographs 62 (1992), pp. 447502CrossRefGoogle Scholar.

17 What follows is a somewhat more formalized version of the summary account of optimal design models given by Richard C. Lewontin, ‘The Shape of Optimality’, in The Latest on the Best, pp. 151–59, especially p. 152. For a more fully worked out example of optimization in population genetics see the appendices to Beatty's, JohnOptimal-Design Models and the Strategy of Model Building in Evolutionary Biology’, Philosophy of Science 47 (1980), pp. 532–61, especially pp. 556–59CrossRefGoogle Scholar.

18 The three requirements given here are based on a series of five questions put to optimality theory by Richard Lewontin, ‘The Shape of Optimality’, p. 152.

19 Lewontin, ‘The Shape of Optimality’, p. 153.

20 While much historical scholarship has been done on the development of Aristotelian method, the most complete philosophical history remains William A. Wallace, Causality and Scientific Explanation (Ann Arbor, 1972). See also the studies in Weisheipl, James A., Nature and Motion in the Middle Ages, ed. Carroll, William E. (Washington, DC, 1985)Google Scholar.

21 Among the best recent studies of Aristotle's method as a dual-staged procedure is that of Ferejohn, Michael, The Origins of Aristotelian Science (New Haven, 1991)CrossRefGoogle Scholar. For the application of this method to biology see the various studies in Philosophical Issues in Aristotle's Biology, ed. Gotthelf, Allan and Lennox, James G. (Cambridge, 1987)CrossRefGoogle Scholar and Lennox, Aristotle's Philosophy of Biology, especially 1–125.

22 For the medieval application to biological research see my ‘Albert the Great and the Revival of Aristotle's Zoological Research Program’, pp. 30–68. On the early modern developments see Wallace, William A., ‘Galileo's Regressive Methodology: Its Prelude and Its Sequel’, in Method and Order in Renaissance Philosophy of Nature: The Aristotle Commentary Tradition, ed. DiLiscia, Daniel A., Kessler, Eckhard, and Methuen, Charlotte (Aldershot, 1997), pp. 229–52Google Scholar; see also Wallace's, Galileo's Logic of Discovery and Proof: The Background, Content, and Use of His Appropriated Treatises on Aristotle's Posterior Analytics, Boston Studies in the Philosophy of Science, vol. 137 (Dordrecht, 1992)CrossRefGoogle Scholar and William Harvey: Modern or Ancient Scientist?’ in The Dignity of Science: Studies in the Philosophy of Science, ed. Weisheipl, James A. (Washington, DC, 1961), pp. 175208Google Scholar.

23 See, for example, Wallace, William A., ‘The Intelligibility of Nature: A Neo-Aristotelian View’, Review of Metaphysics 38 (1984), pp. 3356Google Scholar.

24 Albert and Thomas recognized the importance of such enunciationes ut nunc in research programs. For references see Oesterle, John A., “The Significance of the Universal Ut Nunc’, The Thomist 24 (1961), pp. 163–74CrossRefGoogle Scholar.

25 ‘On Human Nature’, reprinted in The Study of Human Nature, ed. Stevenson, Leslie (New York: Oxford University Press, 2000), p. 275Google Scholar.

26 See the remarks on this point by Richard Lewontin, “The Shape of Optimality’, especially p. 151.

27 Recent philosophers of science disagree on whether biological reductionism is a reduction of teleological explanation to non-teleological explanation or of biology to chemistry. See the classic discussion of Nagel, Ernest, The Structure of Science (New York, 1961), pp. 398446Google Scholar and the response of Taylor, Charles, The Explanation of Behaviour (London, 1964)Google Scholar, especially ch. 1. For the position of Aristotle in respect to this debate see Gotthelf, ‘Aristotle's Conception of Final Causality’, p. 208, n. 10.

28 On this point see Sokolowski, Robert, ‘Formal and Material Causality in Science’, American Catholic Philosophical Quarterly 69 (1995), pp. 5767Google Scholar.

29 For further discussion, see Ashley, Benedict M., The Way toward Wisdom (Notre Dame, 2006), pp. 343–46CrossRefGoogle Scholar. See also Gilson, Etienne, From Aristotle to Darwin and Back Again: A Journey in Final Causality, Species, and Evolution, tr. Lyon, John (Notre Dame: University of Notre Dame Press, 1984)CrossRefGoogle Scholar.

30 For references in Aristotle, see Gotthelf, ‘Aristotle's Conception of Final Cause’, 204–42, especially pp. 208, n. 9 and pp. 234–37. See also the remarks of Albert in his De animalibus XI, tr. 2, c. 4 (tr. Kitchell and Resnick, pp. 892–93).

31 Mayr, Ernst, Toward a New Philosophy of Biology (Cambridge: Harvard University Press, 1988), pp. 234–36Google Scholar; see also his The Idea of Teleology’, Journal of the History of Ideas 53 (1992), pp. 117–35CrossRefGoogle Scholar, especially pp. 118–19 and pp. 133–35.

32 Mayr, ‘The Idea of Teleology’, pp. 125–26.

33 Mayr, ‘The Idea of Teleology’, pp. 126–30. For his general account of teleonomy see Teleological and Teleonomic: A New Analysis’, Boston Studies in the Philosophy of Science, 14 (1974), pp. 91117CrossRefGoogle Scholar.

34 Aristotle uses the terms ex anangke and to hou heneka at Physics II, 5 (196b21) to distinguish natural regularities from what happens in order that a certain form come to exist.

35 Physics II, 5 (196b18); Thomas, Commentaria in Physicorum Aristotelis II, lect. 8 [212] (ed. Marietti, p. 105).

36 “Dicendum quod omnia agentia necesse est agere propter finem. Causarum enim ad invicem ordinatarum, si prima subtrahatur, necesse est alias subtrahi. Prima autem inter omnes causas est causa finalis. Cuius ratio est, quia materia non consequitur formam nisi secundum quod movetur ab agente: nihil enim reducit se de potentia in actum. Agens autem non movet nisi ex intentione finis. Si enim agens non esset determinatum ad aliquem effectum, non magis ageret hoc quam illud: ad hoc ergo quod determinatum effectum producat, necesse est quod determinetur ad aliquid certum, quod habet rationem finis.” Summa theologica I-II, q. 1, a. 2, co.