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2 results

  • 24 - The Vis Viva Controversy

  • from Part III - Problems and Controversies
  • Edited by David Marshall Miller, Iowa State University, Dana Jalobeanu
  • Book:
    The Cambridge History of Philosophy of the Scientific Revolution
    Published online:
    14 January 2022
    Print publication:
    06 January 2022, pp 439-452

  • Summary

    Just as a debate about the fundamental nature of physical entities arose after Descartes, a similar issue arose after Newton. Like Descartes, but of course with very different epistemological and methodological considerations, Newton held that the most fundamental conserved quantity was “quantity of motion” or momentum. Leibniz opposed this, arguing instead for vis viva or “living force.” This controversy introduced two kinds of problems: 1) whether and how empirical proofs could be generated for metaphysical conceptions, and consequently 2) how to understand the relationship between metaphysics and experimental philosophy. These concerns were handled quite differently by two important philosophers: Gravesande and Du Châtelet. Their moves partly resolved older debates, but also partly reconfigured them into new questions we are still attempting to answer.

  • Émilie Du Châtelet on Illusions

  • MARCY P. LASCANO
  • Journal:
    Journal of the American Philosophical Association / Volume 7 / Issue 1 / Spring 2021
    Published online by Cambridge University Press:
    05 November 2020, pp. 1-19

  • In her Discourse on Happiness, Émilie du Châtelet argues susceptibility to illusion is one of the five ‘great machines of happiness,’ and that ‘we owe most of our pleasures to illusions’ (2009: 349). However, many who read the Discourse find this aspect of her view puzzling and in tension with her claims that we must always seek truth and obey reason. To understand better her claims in the Discourse on Happiness, this article explores Du Châtelet's discussions of illusions in her Foundations of Physics, On Liberty, and the Dissertation on the Nature and Propagation of Fire. I distinguish four types of illusions that Du Châtelet posits and clarify the ways in which these relate to her views on happiness and love in the Discourse and argue that she avoids deceptive or perpetual illusions of happiness through the use of the principle of sufficient reason.