Practical knowledge or bust.
If you don't learn something from everything you are doing or have it be a step to elevate you in some way, then you aren't doing Mercury in Capricorn right. You know it, the stern taskmaster is now in charge until December 29, making it about seeing results or putting strategies into place that create results. So, it's full steam ahead with direction and determination or bust!
Main subjects in which to indulge your thoughts with some substance are as follows:
Aries (March 21-April 19): Living out your aspirations
Taurus (April 20- May 20): Expanding what you believe in
Gemini (May 21- June 20): Enjoying your most private secrets
Cancer (June 21-July 22): Understanding your idea of peace
Leo (July 23- August 22): Challenging your traditions
Virgo (August 23- September 22): Expressing yourself more boldly
Libra (September 23- October 22): Connecting back with your foundations
Scorpio (October 23-November 21): Creating new curiosities
Sagittarius (November 22- December 21): Fueling your senses
Capricorn (December 22-January 19): Driving your agenda
Aquarius (January 20-February 19): Compartmentalizing fact from fiction
Pisces (February 20-March 20): Building your Utopia