Our hearts are deeply connected.

Don't you think his behavior has been strange lately?

Nowadays, he goes to the gym every day.

I couldn't understand his actions.

He started to act immediately.

We should always remember the power of Kannon in difficult times.

Our hearts connect through music.

He is an expert in ethology, and his research is highly regarded worldwide.

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.