Like the yin-yang symbol, each half of the circle embraces some of its opposite.

ENGADGET: Switched On: An Office outside the Metro

Senior editor Richard Nalley explains Charleston's singular yin-yang in the article "Past Perfect: Charleston, South Carolina".

FORBES: Editor's Note

In Chinese philosophy, the concept of Yin-Yang explains two complementary forces interacting to form a whole greater than either separate part.

FORBES: Earn More with Index Funds in 2013 and Beyond

Yin-Yang literally means shadow and light.

FORBES: Opposites Attract With Mattioli's 'Yin Yang' Rings

But yin yang doesn't allow direct aisle access for window-seat and middle-seat passengers.

WSJ: The Many Ways to Catch Shut-Eye in the Sky

Google and Wal-Mart are the business world's version of yin and yang.

FORBES: Yin Yang, Big Bang