He was working all day on the farm, using his labor.

We need more labor force to make this project successful.

His words had a great influence.

He says 'knowledge is power' and studies hard every day.

His thinking ability is very high.

He can't stop boasting about his strength.

His work is full of vigour.

His fighting strength is very high.

His eloquence has a great power of attraction.

This team has a high cohesion.