People from Berlin

Gerhard Adler (14 April 1904 – 23 December 1988) was a major figure in the world of analytical psychology, known for his translation into English from the original German and editorial work on the Collected Works of Carl Gustav Jung. He also edited C.G. Jung Letters, with Aniela Jaffe. With his wife Hella, he was a founding member of the Society of Analytical Psychology in London, of which C.G. Jung was first President. Despite their years-long collaboration on translating and editing, Adler's allegiance to Jung and the "Zurich school" caused irreconcilable differences with Michael Fordham, and led to his leaving the Society of Analytical Psychology and founding the Association of Jungian Analysts.

William Stern (born Ludwig Wilhelm Stern; April 29, 1871 – March 27, 1938) was a German psychologist and philosopher who originated personalistic psychology, which placed emphasis on the individual by examining measurable personality traits as well as the interaction of those traits within each person to create the self.
Stern coined the term intelligence quotient (IQ) and invented the tone variator as a new way to study human perception of sound. Stern studied psychology and philosophy under Hermann Ebbinghaus at the University of Berlin, and quickly moved on to teach at the University of Breslau. Later he was appointed to the position of professor at the University of Hamburg.
Over the course of his career, Stern authored many books pioneering fields of psychology such as differential psychology, critical personalism, forensic psychology, and intelligence testing. Stern was also a pioneer in the field of child psychology. Together with his wife, Clara Joseephy Stern, the couple kept meticulous diaries detailing the lives of their 3 children for 18 years. He used these journals to write several books that offered an unprecedented look into the psychological development of growing children.