But the foundations of Aristotelian philosophy, ontology, epistemology, ethics, and theology are another matter.Descartes’ thought must be understood in the context of the attempt to reject Aristotelian physics, and replace it with a different kind of physics, one grounded in a mechanistic conception of nature.
For an Aristotelian physicist, ... bodies have to behave one way or another, as embodied in their substantial forms. Some bodies naturally fall, and others naturally rise; some are naturally cold, and others are naturally hot; some are naturally dry, and others are naturally wet.
For the mechanist ... the world is a machine, all the way down.
Philosopher Edward Feser, in his Aristotle's Revenge, comments on this key feature of modern science : monistic Materialism. He says, "most scientists tend to take for granted the commonsense belief in material objects". Yet, Descartes' dualism also included metaphysical "objects", which he called res cogitans by contrast with res extensa. Over time, materialists began to dismiss the reality of mental objects, such as ideas; believing that even our mentality can be reduced to material objects. They are still looking for empirical evidence to support that assumption.Garber said -- "Descartes’ thought must be understood in the context of the attempt to reject Aristotelian physics, and replace it with a different kind of physics, one grounded in a mechanistic conception of nature".
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