Using the materials professor Han presented in the class the most important part of the Vitruvius triad is firmitatis, Utilitatis, Venustatis. Firmitatis is the most important because it represent stability, at the core of any architecture you need a strong foundation/base. Utilitatis comes in second by representing as utility. This serve as a principle to make us think about what is the intended use for the architecture. Venustatis comes in last because it represent beauty. The beauty aspect in architecture serves as a way to please the eyes and allow creativity to take form. Overall all 3 of these things are important.