"The nature of beauty is one of the most enduring and controversial themes in Western philosophy, and is—with the nature of art—one of the two fundamental issues in philosophical aesthetics. Beauty has traditionally been counted among the ultimate values, with goodness, truth, and justice. It is a primary theme among ancient Greek, Hellenistic, and medieval philosophers, and was central to 18th and 19th-century thought, as represented in treatments by such thinkers as Shaftesbury, Hutcheson, Hume, Burke, Kant; Hegel, Schopenhauer, Hanslick, and Santayana. By the beginning of the twentieth century, beauty was in decline as a subject of philosophical inquiry, and also as a primary goal of the arts. However, the last decade has seen a revival of interest in the subject. This article will begin with a sketch of the debate over whether beauty is objective or subjective, which is perhaps the single most-prosecuted disagreement in the literature. It will proceed to set out some of the major approaches to or theories of beauty developed within Western philosophical and artistic traditions." - Amira

"Beauty is no quality in things themselves: It exists merely in the mind which contemplates them; and each mind perceives a different beauty. One person may even perceive deformity, where another is sensible of beauty; and every individual ought to acquiesce in his own sentiment, without pretending to regulate those of others." -- David Hume - Amira

"Beauty is pleasure regarded as the quality of a thing. … Beauty is a value, that is, it is not a perception of a matter of fact or of a relation: it is an emotion, an affection of our volitional and appreciative nature. An object cannot be beautiful if it can give pleasure to nobody: a beauty to which all men were forever indifferent is a contradiction in terms. … Beauty is therefore a positive value that is intrinsic; it is a pleasure." -- Santayana (1896) - Amira