This collection contains original translations of essays, discussions, and papers including six previously unpublished works from the International Colloquium on Heidegger’s Conception of Language, held at The Pennsylvania State University in 1969. This volume endeavors to place Martin Heidegger’s ideas within a wide range of philosophical thought. It contains critical reflections on his conception of speech in Being and Time, linguistic meditations on Heidegger’s use of language, and analysis of his view on the relationship between thought and the language in which it is expressed. In this book, Heidegger scholars will find additional insights into his conception of language and his philosophy as a whole.