Does philosophy need its own technical language or terminology? Would philosophical questions, thoughts, and theories be formulated in normal language without technical language? Philosophy, in particular, appropriates everyday words for terminological purposes and allows them to become the medium or the object of subtle factual problems in specialized discussions. Should philosophical terms, with their sometimes clear, sometimes subtle shifts in meaning, be esoteric, or should they be easy to understand so that they can also be popularized? To what extent is philosophical orientation knowledge dependent on philosophical means of expression? The book addresses the language of philosophy under historical and systematic aspects. Investigations into the constituents of philosophical terminology, such as translation, etymology, and metaphor, are combined with exemplary case studies and analyses.