He is an expert in physical anthropology, conducting research on human evolution.

Gestalt psychology is an important means to understand human cognitive processes.

In Japanese grammar, verbs with k-row irregular conjugation are characteristic.

Verbs of the sa-line irregular conjugation are a special existence in Japanese.

Verbs of the 'ra-row irregular conjugation' are a special existence in Japanese.

Understanding the rules of 'Ha-gyou tenko' is difficult.

Before starting his new business, he said, 'A journey of a thousand miles begins with a single step.'

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

He is an expert in computational linguistics and is involved in the development of artificial intelligence.

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.