In order to solve problems, it is important to listen to the opinions of many people, as the saying goes, 'two heads are better than one'.

Let's pray that World War III does not occur.

Whenever he faced a difficult situation, he always said, 'The best of the Thirty-Six Stratagems is to run away.'

He warned the young people, saying 'At thirty, one should not be careless, at forty, one should not be indecisive.'

He started a business without a plan, forgetting the lesson of 'peach and chestnut seeds take three years to bear fruit, persimmons eight years.'

He faced difficulties with the spirit of 'one eye, two feet, three gallbladders, four strengths'.

This is a model of a mutetrahedron.

This mutetrahedron has a very unusual shape.