I like memorizing the Hyakunin Isshu.

It's a hundred meters from my house to school.

My grandfather was born in the 1900's.

The 120-cell is one of the regular polytopes in four dimensions.

The 正百二十胞體 is one of the regular polytopes in four dimensions.

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.