In this context, Yanagi’s "Korea and its Art", in particular, has been severely criticised by Korean intellectuals as a "colonialist view of history". Yanagi defined "beauty of sadness" (悲哀の美, "hiai no bi") as the "innate, original beauty created by the Korean race" (民族の固有の美, "minzoku no koyū no bi") and expressed his belief that a long history of foreign invasions of Korea was reflected in Korean art, and especially in the "sad and lonely" lines of its pottery. Such a theory has been criticised by Korean scholars as an "aesthetic of colonialism".