Perception: Sensory, Conceptual, and Cognitive Dimensions
This chapter considers how perception is central in epistemology, and the concept of perception is among the most important in philosophy. If the psychological authority of perception—chiefly, its power to compel belief under varying conditions—is not in general contested, its epistemic authority—chiefly, its power to yield knowledge and justified belief—is often taken to be limited to certain realms and to hold for descriptive rather than normative propositions. Paradigms of the former are propositions ascribing observable properties, such as color and shape, to macroscopic objects. Whereas paradigms of normative propositions are those ascribing obligations to persons, wrongness to actions, or intrinsic goodness or badness to states of affairs.