 Talk of a moral sense suggests an epistemic picture according to which moral knowledge is similar to knowledge acquired by other senses. We simply attend to something real or imagined, and immediately, without any kind of reasoning, just know whether it’s right or wrong, just as we come to know the colour or shape of a car just by looking at it. And it is no doubt often the case that belief in the presence of the wrong-making natural properties (such as intentionally causing excruciating pain to a whimpering dog) triggers an emotional reaction in us. It is plausible, and supported by empirical data  (see Section 2.1),  that the emotional response often precedes and perhaps causes the moral judgment. But is it a perception or something analogous?