• superiority of Europeans in military affairs and business;
• fears that the colonialist policy of the Europeans will destroy the empire;
• contact with Europeans undermined the foundations of traditional society.
The isolation of China began, which was not complete, but significantly hampered, first of all, its own economic and technical development.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.