Wikipedia: "Paul Johannes Tillich (August 20, 1886 – October 22, 1965) was a German-American Christian existentialist philosopher and theologian. Tillich is widely regarded as one of the most influential theologians of the 20th century."
"There was a tremendous amount of disappointment that the First World War didn't make the world happy or mature for democracy, as the slogan was. Then the years before the Second World War were full of anxiety about the Hitler situation, the Communist situation. Then the American younger generation went into the Second World War and came out of it and the world looked darker than before, in this East-West split. As I sometimes say, the whole world was schizophrenic, which is a kind of medical disease in individuals, and I have the feeling mankind as a whole has this disease." - Paul Tillich. [10:07 - 10:54 in part one of the 1956 interview below].
A Conversation with Dr. Paul Tillich. Source: YouTube Channel yhinferno. Date Published: May 14, 2011. Description:
Made available for educational purposes only! Please respect copyrights and cite this source properly.Part 1:
Title: A conversation with Dr. Paul Tillich and Mr. Werner Rode, a graduate student of theology [videorecording].
Published: [New Haven, CT] : Yale Broadcast & Media Center, 
Description: 1 DVD (28 min.) : sd., b&w ; 4 3/4 in.
Notes: Telecast in 1956 on the NBC-TV series Frontiers of faith and produced by the National Council of Churches of Christ in the U.S.A., Broadcasting and Film Commission. Reproduced in new format on Sept. 30, 1986, by Union Theological Seminary in Virginia, Library Media Services Department. DVD copy of original VHS videocassette: [Virginia : Union Theological Seminary, 1986]
Summary: Werner Rode, a graduate student at Union Theological Seminary, New York, interviews the theologian Paul Tillich in 1956 concerning his life and developments in theology during his career.