In this paper I only seek to clarify the issue, in my opinion still unclear, concerning the relationship between architectural design and the social sciences. By architectural design I understand any process of use, transformation, design or the building of dwelling units or cities. By social sciences I understand all the human sciences within a general and broad framework. In recent history this interrelation has neither been very easy nor very successful. It is no waste of time to reflect on the reason for this difficult interrelation and to ask ourselves questions, which to a great entend will remain without answer; but in the framework of this international Congress perhaps we can set ourserves the task of starting to find some of the answers.