He is studying the history of African Americans.

They have a variety of opinions, making it difficult to agree.

He is recognized as the top person in that field.

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

In order to solve problems, it is important to listen to the opinions of many people, as the saying goes, 'two heads are better than one'.

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

He said, 'If you want to shoot a man, first shoot his horse,' and began to solve the smaller problems first.

He contracted severe invasive streptococcal disease and underwent emergency surgery.

He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'

He said, 'Man shall not live by bread alone,' teaching me that spiritual satisfaction is also important.