Cogito, ergo sum (See CSMK III 159, 161.) Another predecessor was Avicenna's "Floating Man" thought experiment on human self-awareness and self-consciousness. The 8th century Hindu philosopher Adi Shankara wrote in a similar fashion, No one thinks, 'I am not', arguing that one's existence cannot be doubted, as there must be someone there to doubt. The central idea of "cogito, ergo sum" is also the topic of Mandukya Upanishad. Spanish philosopher Gómez Pereira in his 1554 work "De Inmortalitate Animae", published in 1749, wrote ""nosco me aliquid noscere, & quidquid noscit, est, ergo ego sum"" ("I know that I know something, anyone who knows
Ergo Proxy two DVD box collection on September 25, 2012 and August 22, 2012 respectively. In Australia and New Zealand, the "Ergo Proxy" DVDs were distributed by Madman Entertainment, the first volume released in March 2007. The first volume of "Ergo Proxy" was released in the UK by MVM Films on August 6, 2007. The English dub of "Ergo Proxy" aired on ABC2 (the national digital public television channel) from July 3, 2007 to December 4, 2007. In Canada, the English dub aired as part of Anime Current, an Anime Television block, on pay-TV digital channel G4 Canada from July 26, 2007