Gidōsanshimō is a courtesy name of Takashina no Kishi.

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 quoted the proverb 'Once a word leaves your mouth, you cannot chase it back even with the swiftest horse' to teach me to choose my words carefully.

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

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

This is a model of a mutetrahedron.

This mutetrahedron has a very unusual shape.