Gemini, the sign of the Twins, is dual-natured, elusive, complex and contradictory. On the one hand it produces the virtue of versatility, and on the other the vices of two-facedness and flightiness. The sign is linked with Mercury, the planet of childhood and youth, and its subjects tend to have the graces and faults of the young. When they are good, they are very attractive; when they are bad they are more the worse for being the charmers they are. Like children they are lively, and happy, if circumstances are right for them, or egocentric, imaginative and restless.