He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

He is studying late into the night to learn a new computer language.

He is an amazing polyglot who can speak five languages fluently.

Natural language understanding is an important field of artificial intelligence.

He is attending a programming school to learn object-oriented languages.

Natural language processing is a technology that allows computers to understand and analyze human language.

He is an expert in comparative linguistics.

Computational linguistics is the study of analyzing human language with computers.

He is world-famous as a comparative linguist.

I am very interested in sociolinguistics.