When is force work considered positive?

The work of a force is a scalar value, which means that it does not depend on the direction of the force.
That is, the work of strength is always positive.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.