Rene Descartes, in The Philosophical Writings of Descartes (John Cottingham, Robert Stoothoff, and Dugald Murdoch, eds., Cambridge University Press, 1984), vol. 2, pp. 1-62
The publication of these Meditations, in which Descartes famously strives with universal doubt in order to establish what can be known with certainty, sparked a famous quarrel between Descartes and Hobbes.
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