A hierarchy of genres is any formalization which ranks different genres in an art form in terms of their prestige and cultural value. In literature, the epic was considered the highest form, for the reason expressed by Samuel Johnson in his Life of John Milton: "By the general consent of criticks, the first praise of genius is due to the writer of an epick poem, as it requires an assemblage of all the powers which are singly sufficient for other compositions." Below that came lyric poetry, and comic poetry, with a similar ranking for drama. The novel took a long time to establish a firm place in the hierarchy, doing so only as belief in any systematic hierarchy of forms expired in the 19th century.