 A separate stance has been taken by Polish scholar Stanislaw Schayer, who argued in the 1930s that the Nikayas preserve elements of an archaic form of Buddhism which is close to Brahmanical beliefs, and survived in the Mahayana tradition.As noted by Alexander Wynne, Schayer drew on passages "in which "consciousness" (viññana) seems to be the ultimate reality or substratum (e.g.A I.10), as well as the Saddhatu Sutra, which is not found in any canonical source but is cited in other Buddhist texts."