taut defined the main principles of architecture as technique, construction, function and proportion. then he opened a category that would respond to geographical differences:climate. according to taut, almost all external conditions of architecture were a function of climate, and in each design, the four abstract principles had to be made concrete to achieve a climate-specific building. climate not only gave ” a specifity, a tonality, a musical color to the building,” but also mirrored the ethnic differences in body proportions and human expressions. in other words, climate was not only a functional matter for him, as it was for most european architects, but a much broader-even a metaphysical-issue.. taut conceived the notion of climate to help attain universality, rather than regionalism: ” the more architectural forms are appropriate to the climate, light and air of their place, the more they are universal. source :: modern architecture and the mediterranean.