Willem "Wim" Sonneveld (Dutch pronunciation: [ˌʋɪləm ʋɪm ˈsɔnəvɛlt]; 28 June 1917 – 8 March 1974) was a Dutch cabaret artist and singer. Together with Toon Hermans and Wim Kan, he is considered to be one of the 'Great Three' of Dutch cabaret. Sonneveld is generally viewed as a Dutch cultural icon for his work and legacy in theatre, musicals and music.
Paul Donald MacLean (May 1, 1913 – December 26, 2007) was an American physician and neuroscientist who made significant contributions in the fields of physiology, psychiatry, and brain research through his work at Yale Medical School and the National Institute of Mental Health. MacLean's evolutionary triune brain theory proposed that the human brain was in reality three brains in one: the reptilian complex, the limbic system, and the neocortex.