What is the next sentence of filial piety to the teacher?

Serving the country is righteousness. Filial piety and respect for teachers come from Chinese excellent traditional culture and enter the campus. The next sentence is to serve the country and be righteous. Filial piety means respecting parents (parents) and teachers (teachers' elders). Honor your parents at home and respect your teachers and elders outside. It shows that a person is very polite and filial.