principled

"Bullying is a serious problem at school, and teachers are working to stop it. "

"He is a student of life."

"The impress of her hard work on her school project was evident in the high grade she received. "

"We need some sort of principles to reason from."

"Here are some examples of different types of birds: robins, eagles, and sparrows. "

"Attending all your classes is of great importance to your success in school. "

"The new teacher worked hard to establish a routine in her classroom. "

"The community benefited from the new park, as it provided a safe place for children to play. "

"The certain success of the project was a relief to the team. "

"an unpopular opinion"

"His courage manifested itself through the look on his face."

"The teacher's conduct of the class ensured a smooth and orderly learning environment. "