Paul Feyerabend was born on January 13, 1924, in Vienna. He started school at the age of six. In 1934, Paul Feyerabend transferred to a secondary school (Realgymnasium) where “non-Aryan” students—until their expulsion and extermination—were taught in separate “Jewish classes.” At around the age of 16, he had a reputation for understanding more about physics and mathematics than his teachers. After graduating from high school, Feyerabend was conscripted into the Reich Labor Service and, in 1943, into the Wehrmacht. In Yugoslavia and later on the so-called Eastern Front, he experienced the war as a private, non-commissioned officer, and officer. While fleeing from Soviet troops, he was severely wounded. The consequences of these injuries would accompany him for the rest of his life. He would have to live with constant headaches, be unable to walk without a cane, and be impotent. He experienced the end of World War II and liberation from National Socialism in a military hospital in Apolda, near Weimar. After his recovery, he began studies at the Hochschule für Musik in Weimar. Among other subjects, he studied harmony, piano, singing, and performance. Perhaps it was the political changes in the Soviet Occupation Zone; perhaps there were other reasons—in any case, Paul Feyerabend decided to leave Weimar in November 1946 and return to Vienna.