A very popular view in academic philosophy is that knowledge of the history of philosophy is important for doing contemporary work in philosophy. But so much of the history of philosophy is filled with bad arguments and false theses, which serious people would never subscribe to.
How does painstaking familiarity with ancient mistakes and false propositions help us do philosophy today? It seems to me that false claims cannot ground anything -- or add anything valuable to what we know now. They are false!
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