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

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

He quoted the proverb 'Once a word leaves your mouth, you cannot chase it back even with the swiftest horse' to teach me to choose my words carefully.

He is truly a person who embodies the saying, 'A man of virtue will naturally attract admirers.'

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.

I fed the pigeons in the park.

I would rather go alone.