[Nietzsche's] definition of cruelty informs Artaud's own,...

[Nietzsche's] definition of cruelty informs Artaud's own, declaring that all art embodies and intensifies the underlying brutalities of life to recreate the thrill of experience ... Although Artaud did not formally cite Nietzsche, [their writing] contains a familiar persuasive authority, a similar exuberant phraseology, and motifs in extremis ...