He has difficulty expressing his emotions in words.

His inherent nature became clear.

His inherent nature became clear.

I couldn't understand his actions.

He started to act immediately.

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

It's important to believe in yourself.

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.