Stabilitas or Mobilitas?
Vitruvius covered the whole range of architectural concerns when he coined the phrase “Utilitas, Venustas, Firmitas” around 15 BC. Utilitas (utility) refers to convenience and commodity of use. Venustas (beauty) naturally involves the aesthetics. Firmitas (stability) refers to the strength of construction. Vitruvius further expands on firmitas by stating, “Durability will be assured when foundations are carried down to the solid ground and materials wisely and liberally selected.”