Ludwig Wittgenstein is one of the most influential figures in modern philosophy. Although he only published one major philosophical work during his lifetime, the Tractatus, his works also encompass a huge number of lectures, conversations, articles, reviews and his own private secret diaries. These diaries, written partly in plaintext and partly in a coded script, interpolate his theories of the philosophy of language with personal, autobiographical passages. This book seeks to unlock his secret diaries to determine what they reveal about Wittgenstein's public and private identities.
Employing the semiotic doctrine of Charles S. Pierce, Dinda L. Gorlee argues that the style of writing used in the coded and uncoded diaries reflects the variety of Wittgenstein's emotional moods. Using Peirce's reasoning of deduction, induction and abduction, this book investigates how the emotional, energetic and logical interpretations of the signs and objects used in the coded diaries reflect Wittgenstein's psychological mood.