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.

He is in mourning for his father.

Sextans is one of the constellations in the southern sky.

His way of thinking is commonplace, there is nothing new.

He seems to be enjoying his trip.

He was watching the enemy's movements from the watchtower.

He aimlessly wandered around the city.

The cat named Raku brought happiness to our family.

Her dress was green and very beautiful.

Green is my favorite color.