Mercury represents communication, Cartesian and logical spirit.

Mercury in Capricorn

Reflective, deep thinker: a fine and vivacious mind. Undertakes lengthy studies or, if circumstances do not allow, will teach himself. A rational person.

Weaknesses: rancor, coldness, malice, and often a pessimist.

Mercury in IX

His thirst for knowledge is never satisfied. He is full of mental activity. He undertakes exhaustive studies, always studying for pleasure. Likes journeys to faraway places, and can go to live abroad.

-64 Opposition Mercury - Mars

While his spirit is lively, it is also cunning. He often acts without thinking, he throws himself into things and exaggerates - and this can bring certain problems. He is nervous and irascible. He can develop others' ideas, while they hesitate - he never does: he presses on.

54 Trine Mercury - Saturn

38 Sextile Mercury - Uranus

He is perspicacious, ingenious: he binds intelligence and originality together with genius. He likes literature, especially fiction. He is spontaneous in his friendships and knows how to take advantage of the situations that arise.