In chemistry class, I learned about the reaction of pyruvate.

The Mitsukuri's lantern shark is a rare fish that lives in the deep sea.

He cautioned not to speak ill of others, saying, 'Illness enters by the mouth, and disaster does not come out of it.'

I consume royal jelly every day.

He said, 'Misery of life starts at literacy,' and spoke about the hardships of learning.

He is majoring in philosophy at university, but he is a typical example of a 'learned fool'.

He faced difficulties with the spirit of 'one eye, two feet, three gallbladders, four strengths'.

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.