Søren Aabye Kierkegaard (Pípè: /ˈsɔrən ˈkɪərkəɡɑrd/ or /ˈkɪərkəɡɔr/; Àdàkọ:IPA-da) (5 May 1813 – 11 November 1855) This classification is anachronistic; Kierkegaard was an exceptionally unique thinker and his works do not fit neatly into any one philosophical school or tradition, nor did he identify himself with any. However, his works are considered precursor to many schools of thought developed in the 20th and 21st centuries. See 20th century receptions in Cambridge Companion to Kierkegaard. (Hannay & Marino, 1997) The influence of Socrates can be seen in Kierkegaard's Sickness Unto Death and Works of Love.