Those who love their relatives dare not be evil to others, and those who respect their relatives dare not be rude to others.

It means: If you love your own elderly, you will not dare to treat other people’s elderly badly; if you respect and love your own elderly, you will not dare to neglect other people’s elderly. From "The Classic of Filial Piety". Chapter of the Son of Heaven"

Those who do not learn from teachers will gradually abandon their studies.

Meaning: Not learning from the teacher means gradually giving up on the pursuit of knowledge. From "Collected Works of Lu Hengzhou: Studying the Spring and Autumn Annals with Clan Brother Gao".

When a country is about to prosper, it must value its teachers and respect them.

Meaning: If the country wants to revitalize, it must respect teachers and value the masters who teach their expertise. From "Gouzi".

The ancient scholars must have teachers.

Meaning: People who studied in ancient times must have teachers to teach them. From Han Yu's "Han Changli Ji·Shi Shuo".

The key to learning lies in respecting the teacher.

It means: To learn knowledge and talents quickly, the first thing is to respect the teacher. From "The Spring and Autumn Annals of Geshi·Encouraging Learning".