‘Find a scientific man who proposes to get along without any metaphysics – not by any means every man who holds the ordinary reasonings of metaphysicians in scorn – and you have found one whose doctrines are thoroughly vitiated by the crude and uncriticized metaphysics with which they are packed.. . . Far better, then, that that metaphysics should be criticized and not be allowed to run loose.’

(Peirce, CP: 1.129)