1896 – 1980 · Switzerland
Swiss psychologist who greatly advanced clinical psychology. He is best known for his research on the development of logical thinking in children.
“Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next.”
— 가장 많이 사랑받은 명언
“과학적 지식은 끊임없는 진화 상태에 있다; 그것은 하루하루 변한다.”