This necklace is very expensive.

He participated in many intercultural activities to overcome his xenophobia.

His business is growing with unstoppable force and vigor.

I am interested in Japanese language education.

She is conducting research on the world's oldest profession.

I have been to Reykjavík.

He took out a book from the bookshelf at the back of the room.

Women are smitten with his cool voice.

Last night, I was scared because of the thunder.

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.