[DeepL Translation - needs review] Introduction to Volume 1: The author, a child psychiatrist, has met many juvenile delinquents and has come to realize that there are many "children before remorse. In juvenile training schools, there were many juvenile delinquents whose cognitive abilities were so weak that they could not even "cut a cake into equal pieces," but the depth of the problem was the same even in ordinary schools. Focusing on people with "borderline intelligence," which is estima...
