## Abstract

Prominent mathematician William Thurston was praised by other mathematicians for his intellectual generosity. But what does it mean to say Thurston was intellectually generous? And is being intellectually generous beneficial? To answer these questions I turn to virtue epistemology and, in particular, Roberts and Wood’s analysis of intellectual generosity (Intellectual virtues: an essay in regulative epistemology. Oxford University Press, Oxford, 2007). By appealing to Thurston’s own writings and interviewing mathematicians who knew and worked with him, I argue that Roberts and Wood’s analysis nicely captures the sense in which he was intellectually generous. I then argue that intellectual generosity is beneficial because it counteracts negative effects of the reward structure of mathematics that can stymie mathematical progress.

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## Notes

- 1.
- 2.
We will see that intellectual generosity involves a concern with intrinsic over extrinsic intellectual goods. However I am agnostic on the question whether intrinsic or extrinsic goods are ultimately superior.

- 3.
Although Franklin didn’t know this, her own data had been crucial to Watson and Crick’s work, but they had used it without her knowledge and without giving her credit (Roberts and Wood 2007, p. 298).

- 4.
- 5.
There were, however, some doubts about the reasons Thurston was slow at publishing his theorems and proofs. More on this below.

- 6.
Nonetheless, some noted that Thurston was not perfect. For example, he would sometimes miss the deadlines for submitting letters or reports that were needed for job applications or promotions and did not take an active approach to advising students.

- 7.
I am grateful to two anonymous reviewers for raising the issues considered below.

- 8.
Thurston did, however, publish parts of it (Thurston 1994, p. 176).

- 9.
Roberts and Wood did note that a concern with intrinsic over extrinsic intellectual goods characteristic of intellectual generosity can help researchers persevere where others might give up and so potentially generate new intrinsic intellectual goods in this manner (Roberts and Wood 2007, pp. 301–302). They also pointed to specific ways in which McClintock’s intellectual generosity to Creighton generated intrinsic intellectual goods (Roberts and Wood 2007, p. 302).

- 10.
I am grateful to an anonymous reviewer for pointing out relevant connections between intellectual generosity and social epistemology.

- 11.
The arguments that I make in this section are a modified and shortened form of arguments I make in Morris (n.d.).

- 12.
See https://mathscinet.ams.org/mathscinet/msc/msc2010.html for the full list.

- 13.
Such scenarios happen in practice: “Fields in the mathematical sciences are mature enough so that researchers know the capabilities and limitations of the tools provided by their field, and they are seeking tools from other areas” (National Research Council 2013, p. 97).

- 14.
Thanks to Bonnie Gold for alerting me to Erdős’s generosity.

## References

Agol, I. (2019). Personal communication via email, July 2019.

Alladi, K. (1998). Editorial.

*The Ramanujan Journal*,*2*(1), 5–6.Baehr, J. (2008). Four varieties of character-based virtue epistemology.

*The Southern Journal of Philosophy*,*46*(4), 469–502.Baehr, J. (2011).

*The inquiring mind: on intellectual virtues and virtue epistemology*. Oxford: OUP.Battaly, H. (2008). Virtue epistemology.

*Philosophy Compass*,*3*(4), 639–663.Benham, C. (2011). UC Davis mathematics newsletter. https://www.math.ucdavis.edu/files/6013/7176/9863/newsletter_2012-rev1-3.pdf Archived at https://perma.cc/6LKD-S4UX.

Casadevall, A., & Fang, F. C. (2014). Specialized science.

*Infection and Immunity*,*82*(4), 1355–1360.Church, I. M. (2016). The doxastic account of intellectual humility.

*Logos & Episteme*,*7*(4), 413–433.Creighton, H. B., & McClintock, B. (1931). A correlation of cytological and genetical crossing-over in Zea mays.

*Proceedings of the National Academy of Sciences of the United States of America*,*17*(8), 492–497.Crowley, J. (2014). Putting a value on expository writing. https://sinews.siam.org/Details-Page/putting-a-value-on-expository-writing. Archived at https://perma.cc/H4GL-9F74. Accessed Sept 9, 2019.

Dick, A. (1981).

*Emmy Noether 1882–1935*. Boston: Birkhäuser.Dunne, E., Hulek, K. (2019). MSC2020. https://msc2020.org/ Archived at https://perma.cc/BG4X-DPGW, n.d. Accessed 3 Dec, 2019.

Eliashberg, Y. (2019). Personal communication via email, June 2019.

Fricker, M. (2007).

*Epistemic Injustice: Power and the Ethics of Knowing*. Oxford: Oxford University Press.Gabai, D. (2013). Fine letters. https://www.math.princeton.edu/sites/default/files/2017-10/newsletter2013_2.pdf Archived at https://perma.cc/J9XB-WYKF.

Gabai, D., & Kerckhoff, S. (2015). Thurston, William P. 1946–2012.

*Notices of the American Mathematical Society.*,*62*(11), 1318–1332.Gabai, D., Kerckhoff, S., Minsky, Y., Mosher, L., Weeks, J., Farb, B., et al. (2016). 1946–2012, part II.

*Notices of the American Mathematical Society*,*63*(01), 31–41.Greco, J. (2002). Virtues in epistemology. In P. K. Moser (Ed.),

*The Oxford handbook of epistemology*. New York: Oxford University Press.Hass, J. (2019). Personal communication via email, June 2019.

Heesen, R. (2018). Why the reward structure of science makes reproducibility problems inevitable.

*The Journal of Philosophy*,*115*(12), 661–674.Heesen, R. (2019). The credit incentive to be a maverick.

*Studies in History and Philosophy of Science*,*76*, 5–12.Hellman, H. (2006).

*Great feuds in mathematics: ten of the liveliest disputes ever*. Hoboken: Wiley.Jackson, A. (2006). Conjectures no more? Consensus forming on the proofs of the Poincaré and geometrization conjectures.

*Notices of the American Mathematical Society*,*53*(8), 897–901.Jaffe, A., & Quinn, F. (1993). Theoretical mathematics: Toward a cultural synthesis of mathematics and theoretical physics.

*Bulletin of the American Mathematical Society*,*29*(1), 1–14.Krantz, S. G. (1997).

*A primer of mathematical writing: Being a disquisition on having your ideas recorded, typeset, published, read and appreciated*. Providence: American Mathematical Society.Lady, L (n.d.). How does one do mathematical research? (or maybe how not to). http://www.math.hawaii.edu/lee/how-to.html. Archived at https://perma.cc/LZE6-ETTD.

Lin, T. (2016) Remembering Felix Browder, a nonlinear genius in a nonlinear world. The New Yorker, December 2016. Archived at https://perma.cc/UGA5-VQ38.

McMullen, C. (1990). Iteration on Teichmüller space.

*Inventiones Mathematicae*,*99*(1), 425–454.Medina, J. (2011). The relevance of credibility excess in a proportional view of epistemic injustice: Differential epistemic authority and the social imaginary.

*Social Epistemology*,*25*(1), 15–35.Miller, C. B. (2018). Generosity: A preliminary account of a surprisingly neglected virtue.

*Metaphilosophy*,*49*(3), 216–245.Minsky, Y. (2019). Personal communication via email, July 2019.

Morgan, J. W., & Shalen, P. B. (1984). Valuations, trees, and degenerations of hyperbolic structures, I.

*Annals of Mathematics*,*120*(3), 401–476.Morgan, J. W., & Shalen, P. B. (1988). Degenerations of hyperbolic structures, II: Measured laminations in 3-manifolds.

*Annals of Mathematics*,*127*(2), 403–456.Morgan, J. W., & Shalen, P. B. (1988). Degenerations of hyperbolic structures, III: Actions of 3-manifold groups on trees and thurston’s compactness theorem.

*Annals of Mathematics*,*127*(3), 457–519.Morris, R. L. Increasing specialization: Why we need to make mathematics more accessible. Unpublished manuscript, n.d.

National Research Council. (2013). The Mathematical Sciences in 2025. The National Academies Press

Odifreddi, P. (2006).

*The mathematical century: The 30 greatest problems of the last 100 years*. Princeton: Princeton University Press.Oreskovich, A.-M., Sagalovskiy, D. Math Club interview with Professor Curtis McMullen, n.d. http://www.math.harvard.edu/~ctm/expositions/html/interview.html. Archived at https://perma.cc/C9S7-N9SY.

Perelman, G. (2002). The entropy formula for the Ricci flow and its geometric applications. arXiv:math/0211159 [math.DG], November 2002. URL https://arxiv.org/abs/math/0211159.

Perelman, G. (2003a). Ricci flow with surgery on three-manifolds. arXiv:math/0303109 [math.DG], March 2003. URL https://arxiv.org/abs/math/0303109.

Perelman, G. (2003b). Finite extinction time for the solutions to the Ricci flow on certain three-manifolds. arXiv:math/0307245 [math.DG], July 2003. URL https://arxiv.org/abs/math/0307245.

Roberts, R. C., & Wood., W. J. (2007).

*Intellectual virtues: an essay in regulative epistemology*. Oxford: Oxford University Press.Rota, G.-C. (1991). The concept of mathematical truth.

*The Review of Metaphysics*,*44*(3), 483–494.Rota, G.-C. (1997a). The phenomenology of mathematical beauty.

*Synthese*,*111*(2), 171–182.Rota, G.-C. (1997b). Ten lessons I wish I had been taught. In G.-C. Rota & F. Palombi (Eds.),

*Indiscrete Thoughts*(pp. 195–203). Boston, MA: Birkhäuser.Sosa, E. (1991). Reliabilism and intellectual virtue. In W. P. Alston (Ed.),

*Knowledge in perspective: Selected essays in epistemology*(pp. 131–146). Cambridge: Cambridge University Press.Sosa, E. (1991). Intellectual virtue in perspective. In W. P. Alston (Ed.),

*Knowledge in perspective: Selected essays in epistemology*(pp. 270–294). Cambridge: Cambridge University Press.Stein, H. (1988). Logos, logic, and logistiké: Some philosophical remarks on the nineteenth century transformation of mathematics.

*History and Philosophy of Modern Mathematics*,*11*, 238–259.Stephan, P. (2012).

*How economics shapes science*. Harvard: Harvard University Press.Stewart, I. (2013).

*Visions of infinity: The great mathematical problems*. New York: Basic Books.Strevens, M. (2003). The role of the priority rule in science.

*The Journal of Philosophy*,*100*(2), 55–79.Thoma, J. (2015). The epistemic division of labor revisited.

*Philosophy of Science*,*82*(3), 454–472.Thurston, W. P. (2010). What’s a mathematician to do? https://mathoverflow.net/questions/43690/whats-a-mathematician-to-do/44213. Archived at https://perma.cc/XVA8-8L6D.

Thurston, W.. (2002). Geometry and topology of three-manifolds. Available online at http://library.msri.org/books/gt3m/.

Thurston, W. P. (1982). Three-dimensional manifolds, Kleinian groups and hyperbolic geometry.

*Bulletin of the American Mathematical Society*,*6*(3), 357.Thurston, W. P. (1994). On proof and progress in mathematics.

*Bulletin of the American Mathematical Society*,*30*, 161–177.Truesdell, C. (2007). Leonard Euler, supreme geometer. In D. William (Ed.),

*The genius of Euler: Reflections on his life and work*(pp. 13–42). Washington, D.C: MAA.Turri, J., Alfano, M., Greco, J. (2018). Virtue epistemology. In E.N Zalta (ed), The Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University, summer 2018 edition. https://plato.stanford.edu/archives/sum2018/entries/epistemology-virtue/.

Waldo Dunnington, G., Gray, J., & Dohse, F.-E. (2004).

*Carl Friedrich Gauss: Titan of Science*. Washington, D.C: MAA.Whitcomb, D., Battaly, H., Baehr, J., & Howard-Snyder, D. (2017). Intellectual humility: Owning our limitations.

*Philosophy and Phenomenological Research*,*94*(3), 509–539.Zagzebski, L. T. (1996).

*Virtues of the mind*. Cambridge: Cambridge University Press.Zollman, K. J. S. (2019). The scientific Ponzi scheme. Unpublished manuscript available on the PhilSci-Archive http://philsci-archive.pitt.edu/16264/.

## Acknowledgements

I am very grateful to Ian Agol, Yakov Eliashberg, Yacin Hamami, Bonnie Gold, Joel Hass, Erich Kummerfeld, Curtis McMullen, Yair Minsky and Alan Weinstein. I am also very grateful to participants at both the Mathematics in Practice conference held at Stanford University in May 2019 and the MidWest Philosophy of Mathematics Workshop held at Notre Dame in November 2019. Finally I am very grateful to three anonymous reviewers for their many helpful comments and suggestions. This work was partly undertaken while I held a Postdoctoral Scholarship at the Suppes Center for History and Philosophy of Science at Stanford University.

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Morris, R.L. Intellectual generosity and the reward structure of mathematics.
*Synthese* (2020). https://doi.org/10.1007/s11229-020-02660-w

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### Keywords

- Virtue epistemology
- Intellectual virtues
- Intellectual generosity
- Mathematical practice