Platonic Method
Using evidence from the Republic, the chapter shows how Plato thought that his iconic method could work. It focuses on some famous methodological remarks concerning the longer and shorter routes, and on Socrates’ diagram of the Divided Line which shows how one’s enquiries at each stage can use items from a level below to generate an understanding of the ones next above, in a continuous sequence of closer approximation to the truth (described as degrees of ‘clarity’). It argues that every level of enquiry is conducted by this method, which crucially involves the image–original relation. This allows the philosopher to investigate the forms by starting from particulars, and then at a later stage to consider the forms as shadows of higher, less accessible forms such as the Good itself.