W. Schröder, in: Matthias Knutzen, Schriften und Materialien (2010), p.8, calling Knutzen "the first author we know of who self-identified as an atheist". Cf. also Rececca Moore, The Heritage of Western Humanism, Scepticism and Freethought (2011), calling Knutzen "the first open advocate of a modern atheist perspective" [1]