Michel Strickmann, a scholar of Daoist and Buddhist studies, analyzed the well-documented Shangqing Schools alchemy in the Maoshan revelations and in the life of Tao Hongjing, and concluded that scholars need to reexamine the Western stereotype of "accidental elixir poisoning" that supposedly applied to "misguided alchemists and their unwitting imperial patrons". Since Six Dynasties and Tang period Daoist literature thoroughly, "even rapturously", described the deadly toxic qualities of many elixirs, Strickmann proposed that some of the recorded alchemical deaths were intentional ritual suicide. Two reviewers disagreed about Strickmanns conclusions. The first questions why he defends the logic of alchemical suicide rather than simply accepting the idea of accidental elixir poisoning, and says Tao Hongjing never experimented with alchemy seriously enough to achieve suicide himself—but fails to mention Strickmanns prime example: Taos disciple Zhou Ziliang whom Shangqing deities reportedly instructed to prepare a poisonous elixir and commit suicide in order to achieve immortality. The second describes Strickmanns chapter as "one of the most thorough and useful" in the volume, and says he proves that it is "almost ludicrous to assume that a Taoist (commoner or emperor) could have died from accidental' elixir poisoning".