This fascinating blend of quiet intelligence is personified by some zodiac signs in the astrological world.
Our list begins with Virgo, the sign that watches the zodiac with great attention to detail.
Virgos have a reputation for being very analytical thinkers who pay close attention to detail.
The cryptic Scorpio has a sixth sense that gives them a natural advantage in any situation.
These people can read complicated situations and come up with sound strategies even when they don't speak a word.
Among the zodiac signs, Capricorns are the most realistic planners, and they show a quiet intelligence based on logic and reason.
With an eye toward the future, they are meticulous planners who never lose sight of the big picture.