... a proper understanding of the work demands that the observer gain, some awareness of what is being represented. While the observer might not completely understand what is represented, she must still have a sufficient appreciation of what the work represents. 2. Following from 1), the observer must be able to distinguish the medium of representation (e.g. pastels) from the subject of representation (e.g. a vase). If the medium and the subject are mixed up, then the conditions for a sufficient understanding of the representation are not fulfilled (and so condition 1 is not met). 3. To be a representation, the work must convey thoughts about its subject and to be interested in the work is to be interested in comprehension of those thoughts. By thoughts, I assume Scruton means, "the sense or content of a declarative sentence," which can either be true or false. A representational work must generate propositions with truthvalues, ...

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