And He Chu in "Bright Sword". They are all anti-Japanese heroes and belong to the two parties of the country. There is no doubt that they were enemies in the civil war. They confronted each other head-on and tried their best. They were wounded after the war, and the first thing they asked when they woke up was whether the other party was still alive.

There is also the Bandung Conference held in India in the early days. Capitalism and the Eastern Group countries can't reach an agreement, so it is difficult to hold a meeting. Premier Zhou Enlai put forward the idea of seeking common ground while reserving differences, which eased the contradictions between countries. China also has many cooperative relations with capitalist countries.

These can all be examples of harmony and difference. Please elaborate on them.