アルフレッド・アドラー
Apparently introduced to the ideas of Alfred Adler (no relation to Friedrich) by her son, Lazarsfeld joined the Vienna Individual Psychology Society after the First World War, and underwent training with Alfred Adler in the 1920s. She coined the phrase "the courage to be imperfect", first using it at the 1925 Second International Congress of Individual Psychology, and expanding on the idea in later writing.