Rationalism - Rationalism Defined, The Roots Of Rationalism, René Descartes, Benedict Spinoza, Nicolás Malebranche, Gottfried Wilhelm Von Leibniz
In the final section of the Critique of Pure Reason, Immanuel Kant distinguishes empiricism and rationalism:
In respect of the origin of the modes of "knowledge through pure reason," the question is as to whether they are derived from experience, or whether in independence of experience they have their origin in reason. Aristotle may be regarded as the chief of the empiricists, and Plato as the chief of the noologists [rationalists]. Locke, who in modern times followed Aristotle, and Leibniz, who followed Plato … have not been able to bring this conflict to any definitive conclusion. [Kemp Smith, trans.]
The School of Athens (1510–1511) by Raphael. In Raphael's fresco, Plato is pointing towards the heavens, indicating what he saw as the unchanging truths of knowledge, while Aristotle points downwards, symbolizing his belief that learning came from human experience. SCALA / ART RESOURCE, NY
Kant's vision of a conflict between empiricism and rationalism remains to this day the organizing principle for discussions of early modern metaphysics and epistemology. Kant may have overstated the extent to which there was a conflict between empiricists and rationalists: it has recently been suggested that both may be seen as pursuing the common project of defining the scope and limits of human knowledge. It has also been charged that the very distinction between empiricism and rationalism should be rejected. I believe that the distinction usefully captures certain defining features of early modern philosophy and that the terms rationalism and empiricism should be retained.
Additional Topics
Kant's characterization of rationalism is generally accurate. One addition must be made. Like most early modern philosophers, the rationalists conceived of the human cognitive faculties as distinguished into the pure intellect, the senses, and the imagination. The pure intellect was the faculty that enabled human beings to gain knowledge. Rationalism may be defined as the view that substant…
It was by no means idiosyncratic for Kant to take Plato and Aristotle as prefiguring the opposition between rationalism and empiricism; this opposition is, for example, the organizing principle of Raphael's Vatican fresco The School of Athens. Plato points up, to the realm of Forms, the unchanging objects of the pure intellect; Aristotle points to the earth, thereby indicating the experient…
Descartes formulated his conception of philosophy in explicit opposition to the Scholastic Aristotelians' emphasis on sense-based experience. The Meditations are best understood as a series of cognitive exercises that train the meditator to discover truths about the world by the use of pure intellect, independent of the senses. Beginning by purging the self of intellectual preconceptions, b…
Spinoza is the only Jewish thinker among the rationalists. He was excommunicated from the Jewish community of Amsterdam, possibly on account of the heretical views that he held about the nature of God and the immortality of the soul, views later elaborated in his great systematic work, the Ethics. Spinoza's philosophical system is the purest example of rationalism. Other rationalists remain…
Malebranche's philosophical system is a synthesis of Cartesian philosophy and Augustinian theology. In The Search after Truth, Malebranche seeks to remedy human ignorance by presenting the nature of the human mind and showing that it is only by heeding the perceptions of the pure intellect that human beings may achieve knowledge. In the course of elaborating this view, Malebranche develops …
Leibniz's philosophical system reflects an overarching commitment to the idea that there is a rational order to the universe that can be grasped by human minds. This commitment is manifest both in his more general epistemological and metaphysical views on display in works like the Monadology and in the philosophical theology contained in the Theodicy. The foundation of Leibniz's phil…
Kant's Critique of Pure Reason definitively limited the rationalists' pretensions to achieve knowledge of substantive truths by means of the intellect alone. Kant argues that knowledge is limited to the appearances presented to us by the senses; no extension of knowledge is possible to the "supersensible" or intelligible realm to which the rationalists, like Plato, purp…
Descartes, René. The Philosophical Writings of Descartes. 3 vols. Edited and translated by John Cottingham, Dugald Murdoch, Robert Stoothoff, and Anthony Kenny. Cambridge, U.K., and New York: Cambridge University Press, 1984–1991. Most complete English edition of Descartes's writings. Kant, Immanuel. Critique of Pure Reason. Translated by Norman Kemp Smith. New York: St. Martin&…
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