Abstract
The article argues against various proposals to treat the term 'beauty' as standing for a single, generic concept of aesthetic value, which has application both to natural objects and to art. It argues that in Kant's aesthetic theory 'beauty' must be treated as ambiguous because in the case of art, but not in that of nature, part of beauty is the expession of aesthetic ideas. This gives rise to the dilemma: either beauty is always the ultimate aesthetic value of any thing, in which case there is no single account of beauty to be had that covers both art and nature, or being beautiful is the same for both art and nature, but must constitute only part of the aesthetic value of art. It is argued that certain late twentieth century theories of beauty do not overcome this problem.