ABSTRACT
This chapter describes a feature of Wittgenstein's later philosophy that occurs only in On Certainty. This is a unique form of foundationalism that is neither doxastic nor non-doxastic as philosophers conventionally use those terms. It has both nontraditional and traditional features. Like philosophy and literature, science is filled with celebrated instances in which metaphors have given rise to new insights and discoveries. It will be helpful in understanding Wittgenstein to describe a case that is mentioned in all elementary chemistry textbook. Like Wittgenstein, Friedrich August von Stradonitz Kekule had a serious interest in architecture. The chapter focuses on Wittgenstein's use of metaphors and it suggests, opened the door to a new understanding of his philosophical development. It discusses what the metaphors Wittgenstein uses for the foundational are, and is there any pattern they exhibit? Many of the metaphors Wittgenstein uses for the foundational have architectural resonances.
