A genuine origin and language for the universal principles of architecture

Today, architectural theories are replaced by instant discoursive positions, which are mainly overwhelmed by a crisis of meaning and legitimacy. The examination of the history of architectural theories showed that those instant positions are based on the architectural theories of the 18th century. The reverse-chronological investigation of the theories of the 18th century has revealed the emancipation of architecture from its metaphysic knowledge, which distanced the theory from its origins dissociatively, in the 17th century as the reason that crisis. That knowledge was defining the particulars of architectural theory, such as origin, meaning, character, taste, and form from antiquity to the late 17th century. The research showed that those particulars constitute the universals of architecture. Their genuine origin and language defining them were structured by Vitruvius in the 1st century BC on the basis of six essential concepts: order, arrangement, symmetry, eurhythmy, propriety and economy. Those concepts have been revisited and redefined in order to reflect upon the domain itself by means of its own terminology, rather than imported concepts. This reflection, considered as a further study, would proceed towards solid and valid architectural theories corresponding the crisis of meaning and legitimacy.