Essentially, Professor von Verscher played a vital role in Mengele's life as a mentor and father figure. It created Mengele's obsession with twins and showed him their value as research subjects. Likewise, Mengele's time as a field physician impacted how he made his "selections" as well as how he conducted his experiments. Due to his former profession, he demonstrated great efficiency when it came to making life and death decisions on the Auschwitz ramp. In the laboratory, he attempted to recreate the conditions he had once experienced on the front lines by not using anesthetics on his victims during gruesome surgeries. Additionally, Hitler's views in favor of an Aryan master race influenced many of Mengele's experiments at Auschwitz; where he tried to unlock the secrets of the genetics behind “blonde hair and blue eyes”. Ultimately, Mengele was a madman responsible for the deaths of some four hundred thousand defenseless people. Ultimately, we will never understand how a well-educated doctor from a wealthy family transformed into a monster capable of committing the most horrific atrocities imaginable against his fellow human beings..