Meng Lu. According to the inquiry of people of insight, Meng Lu judged that education should originate from children's unconscious imitation of adults from the perspective of psychology in his textbook History of Education. The theory of psychological origin, also known as "the educational origin theory of psychology", was initiated by Meng Lu in the United States, and Meng Lu was also the founder of the educational psychological origin theory. Meng Lu, an American educator and educational historian, 1869 was born in North Madison, Indiana, and 1892 graduated from Franklin College of Indiana University with a bachelor of science degree.