He studies classical literature and repeats old words.

He is an important character.

In this room, there is an ancient original form of a chair.

He is living completely depending on his parents.

He is depending on his parents for everything.

I'm not in the mood to work.

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.