These signs are down-to-earth, practical, and pragmatic, often serving as the rock in their circle of family and friends.
Like a traditional investment account, Earth Signs don't tend to fluctuate much, emotionally or otherwise. They know how to work hard and apply themselves, even to tasks that would make other people throw up their hands in frustration.
Earth Signs, on the other hand, are big believers in 'slow and steady wins the race,' and they're willing to put their nose to the grindstone when properly motivated (read: well paid!).
They tend to be concerned with value, both monetary and sentimental. Taurus, especially, can get very sentimentally attached to both people and possessions! Capricorn is a bit less sentimental, and more about the bottom line; this sign tends to be very good with money -- sometimes too good. It's hard to convince a Capricorn that splurging a little from time to time is actually a good idea.
Virgo, also, can take some convincing to let its hair down and have a good time, regardless of the cost; guess it's that Earth Sign sensibility that makes these signs add everything up in their heads before they're ready to act. These signs gravitate toward professions that highlight the value of things, such as money market managers, research analysts and antique shop owners.