Openness promotes progress, while closure leads to backwardness.

Openness and closure refer to a country or society’s attitude and policies towards the outside world. Openness means actively integrating into the globalization process, actively absorbing external knowledge, technology, experience and culture, and engaging in exchanges and cooperation with other countries. Closeness refers to a relatively closed economic, cultural and political system that restricts influence and communication with the outside world. There are many reasons why openness brings progress. First, opening up can promote economic development. Through trade and investment with other countries, countries can obtain more resources and market opportunities, and promote industrial upgrading and technological innovation. Secondly, openness can promote the exchange of knowledge and culture. Absorbing external knowledge and culture can broaden thinking, stimulate innovation, and enrich the cultural connotation of the country. In addition, opening up can also promote the flow of talents and interpersonal exchanges, strengthen international cooperation, and solve the challenges faced by all countries. On the contrary, isolation will inevitably lead to backwardness. Seclusion limits the country's access to resources and market development, and hinders economic development. At the same time, isolation also limits the flow of knowledge and culture, making it difficult for countries to keep up with the pace of global development. Closure may also lead to a decline in innovation capabilities and a lack of competition and stimulation from the outside world, causing the country to gradually lose its competitiveness in the fields of science and technology and industry.