The issue of continuity and discontinuity has occupied an important status when we look ahead for the architectural evolution and its continuity over the scene, which is searched by the architecture and urbanism in anywhere and time. The issue of returning to the past or pointing back to it, or even overlooking it, has raised a wide argument bearing intellectual trends that mimic the past, the present and the future. Here we can ask a question, which is: What is that past that we are talking about ? Is it the prevailing societal thought that prevails or the beliefs that control individuals and their activities in the community during that instance, Or is it that ARCHITECTURAL AND URBAN appearance legacy for places lived by our ancestor in the past ? Then comes another question completes what the first one started, Says: Which any of issues mentioned in the first question that may continue or interrupted intellectually for a period of time, can influence more in in the desired architectural development and progress and how.? The research will attempt to answer these two questions through analytical critical vision of the philosophical principle of the cases of continuity and discontinuity out from the Marxist and Pragmatic prospective, and find out the suitability of some of its understanding to the changes occurred in the present components, in particular the social and architecture thought or architecture and Urbanism. Of the most important findings of this study, is that the change occurred in the prevailing societal thought and the beliefs in our Arab societies with what they bear of legacy during periods of time, either its continuity of its originality is available or not, is the main motivation that imposes respond to continue both continuity and discontinuity on architectural and Urban appearance in any approach that can cope the reality of any place or, but to respect constants (Quran and Sunnah) and to adapts to any of the variables that fit interior or exterior of our Arab societies.