The document summarizes that the difference between poor and rich countries is not due to factors like age, natural resources, or intellectual ability. Rather, the key difference is the attitudes and principles followed by most people in each society. Rich countries generally adhere to principles like ethics, integrity, responsibility, respect for laws, work ethic, savings, and punctuality. In poor countries, only a minority follow these basic principles in daily life. Adopting these functional attitudes and principles is what separates rich countries from poor ones, not lack of natural resources or other factors.