ABSTRACT
Some account of Locke's theory of 'sensitive knowledge', and of its essential connection with his doctrine that simple ideas are natural signs of their external causes, has been given above. Yet the theory deserves closer attention. It comprises, first, a version of the ancient doctrine of the independent authority of the senses and, second, a particular definition of the scope of perceptual knowledge. Both theses flow directly and elegantly from the same neat structure.
