The Wandering Stars
Mercury
The swift messenger, at home on every road and in every tongue.
Mercury is the planet of speech, writing, trade, and travel, quick and clever in everything it touches. Traditionally it takes on the nature of whatever planet it joins, which is why the old authors call it convertible. It rules the mind's agility rather than its depth, the courier rather than the king.
Day Wednesday
Metal quicksilver
Temperament cold and dry, though convertible
Dignities rules Gemini and Virgo, exalted in Virgo
Governs speech and writing ✦trade and commerce ✦travel and messages ✦study and skill ✦medicine and healing arts ✦wit and cunning
Workings
eloquence and persuasionsuccess in businessstudy and examinationsdivination and augurysafe journeys
The only planet exalted in one of its own signs. Its temperament is usually given as cold and dry, but tradition holds it changeable, coloured by its company.