Mercury in the tenth house makes intelligence an instrument of career and social position. A person achieves status through knowledge, speech, documents, connections, trips, learning, negotiation, letters, ideas and the ability to be useful in an information environment. Professional authority rests on competence and clear communication.
In a strong expression this is an eloquent, critical and professionally developing person. They can convey thoughts orally and in writing, separate true from false and avoid spreading doubtful information because they understand that reputation is built slowly and lost quickly.

