It's difficult to understand his inner thoughts.

He is a person with a broad mind, so he is liked by everyone.

Shinjiro is my best friend.

No one knows his inner thoughts.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

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

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'

This kanji has the left 'heart' radical (立心偏).

Aishinka is my best friend.

When I looked into her eyes, the phrase 'the eyes are the window to the soul' came to mind.