The mind usually can concentrate well, focusing its energies in a particular direction like a laser. Mercury in Virgo is dignified making the mind logical, scientific, critical, diligent, prudent, perceptive, detailed, discriminative. Thoughts tend to be analytical, systematic, lucid, correct, businesslike, skeptical, and probing. The mind likes to learn, experiment, and serve by evaluation and discernment. Mercury in Libra makes the mind rational, balanced, indecisive, comparing, compromising, and esthetic.
Thoughts tend to be a series of reasons or arguments the way lawyers or diplomats think and talk.
The mind is continually weighing and seeking justice, fairness, balance, harmony, and proportion. The mind is attracted to literature and the arts. Mercury in Scorpio makes the mind probing, shrewd, secretive, resourceful, penetrating, dynamic, investigating, diagnosing, bold, witty, and even sarcastic or biting. Thoughts tend to be intuitive, psychic, forceful, intense, and acute. The mind is interested in motivation, mysteries, psychism, death, and mysticism, often asking why.