Old Church Slavonic is the first language written by the Slavs.

Theravada Buddhism is a sect of Buddhism and is mainly spread in South Asia.

Mahayana Buddhism is a sect of Buddhism that emphasizes compassion and universal salvation.

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

He said, 'Even if you die in the evening, it's okay if you ask the way in the morning,' teaching me the importance of living each day to the fullest.

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.