He is recognized as the top person in that field.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

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

Three days ago, I went to Tokyo.

He underwent surgery on the depressor septi nasi.

World War I was a large-scale war that lasted from 1914 to 1918.

He was anxious about starting a new business, but I encouraged him by saying, 'Even a journey of a thousand miles begins with a single step.'

Ogura Hyakunin Isshu is one of the classical literatures of Japan.

His success is an example of the proverb 'one general achieves success at the cost of ten thousand bones'.

The encounter with him can be said to be 'the events of today are destined by the past.'