system
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human
Did epistemology devastated modern philosophy?

I was reading Story of Philosophy by Will Durant. In Spinoza chapter he stated that- "now began the great game of epistemology, which in Leibnitz, Locke, Berkeley , hume and kant waxed into three hundred years war that at once stimulated and devastated modern philosophy" what does he mean by this?
gpt
Durant is probably referring to a kind of move towards greater and greater skepticism about the external world that people see (correctly or not) in especially Hume but also in Kant's turn away from the noumenal.  One thing to remember though is that Durant has a very specific axe to grind, he's a pragmatist so as far as he is concerned they were running philosophy into the ground.