In Marxism, variable capital represents the value of labor power.

We need more labor force to make this project successful.

He is deeply immersed in the study of Marxism.

He showed his gratitude on his face.

He has difficulty expressing his emotions in words.

This program has elements of changeability.

Your opinion has great value.

This company is planning new investments to increase its capital.

He is a strong person.

He is working all day long.