Are There Different Kinds of Content?

The cup from which I am drinking water now is yellow, and I know that it is. Why does my belief that the cup is yellow count as knowledge? Presumably, the answer must involve some reference to my current perceptual experience: I see the cup, and I see that it is yellow. What is it for me to see that the cup is yellow? The obvious answer would seem to be that it is for me to stand in a certain relation—namely, the relation expressed by the verb ‘to see’—to a proposition, namely, the proposition that the cup is yellow: Perception, that is to say, is a kind of propositional attitude, like belief, though it is also different from belief in many ways. So my seeing that the cup is yellow, being a kind of propositional attitude I take towards that proposition, can count as my reason for believing that the cup is yellow. I’ve thus got a reason for that belief, and it’s a good one. No sort of inference from a prior judgement about my experience is necessary. Rather, I need only import the content of my perceptual state into cognition to believe it.