The 正五胞體 is a simple convex polytope in four dimensions, having five vertices.

A 5-cell is a simple convex polytope in four dimensions.

Mr. Shimooka is my best friend.

Gobanoshin-san is my best friend.

His cooking skills are among the top five.

The Books of Moses are the first part of the Jewish and Christian Bibles.

Him calling me lazy is truly a case of the pot calling the kettle black.

He chose a stable job, saying 'a bird in the hand is worth two in the bush.'

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.