Eugen Bleuler
Paul Eugen Bleuler ( BLOY-lər; Swiss Standard German: [ˈɔʏɡeːn ˈblɔʏlər, ˈɔʏɡn̩]; 30 April 1857 – 15 July 1939) was a Swiss psychiatrist and eugenicist most notable for his influence on modern concepts of mental illness. He coined several psychiatric terms including schizophrenia, schizoid, autism, depth psychology and what Sigmund Freud called "Bleuler's happily chosen term 'ambivalence'".