I am studying Japanese katakana.

I forgot my username.

He was swimming freely as if he was a fish playing in the pot.

After many years of effort, he was finally able to achieve his goal and make a name for himself.

He said, 'A nameless star comes out in the evening,' teaching me that achieving a goal is not easy.

He was able to achieve career success and fame after much hardship.

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.