Wittgenstein’s concept of a“language game” brings out how knowledge and ability are interwoven. Human actions are distinguished by their entanglement in a language game‑ they derive their horizon of meaning through the interplay of linguistic and non-linguistic activities. The present volume is dedicated to the work of Hans Julius Schneider emphasizing the interaction between knowledge and know-how in various areas. In addition to examining the roots of the concept of a language game, the author investigates mental and religious language games.