Abstract
This article explores the philosophies of Heidegger and Wittgenstein to illustrate the thesis that philosophy is a human activity exhibiting a unity of investigative and therapeutic aims. For both philosophers, the purpose of philosophical concepts is to point toward a path of transformation rather than to explain. For both, a first step on this path is the recognition of constraining illusions, whether conventional or metaphysical. For both, such illusions are sedimented in linguistic practices, and for both, philosophical investigation is a way of emancipating thought and life from illusion by bringing what is already prereflectively understood into the light of thematic explicitness. And what both philosophers bring into thematic explicitness are aspects of the context-embeddedness and finitude of human existence. It is hoped that comparing the works of these two philosophers will unveil features of each that are more difficult to discern in the works of either considered in isolation