Book excerpt: While in prison during the Third Reich, Dietrich Bonhoeffer raised several “core questions” in his correspondence with his close friend Eberhard Bethge: How shall future generations live? Who is Jesus Christ actually, for us, today? What does it mean to be truly human? And who am I? In Bonhoeffer’s Questions, John W. de Gruchy explores the development of each question in the course of Bonhoeffer’s life, how he attempted to answer them, and how each prompted further questions in an ongoing conversation with himself, with others, and now with us today. De Gruchy does this within the framework of his own life-long and life-changing conversation with Bonhoeffer in the context of South Africa from the beginning of the apartheid era to the present day. He also describes how he has come to know Bonhoeffer as a theological witness to Christ, a prophet of God’s justice, and a Christian humanist before proceeding with a series of questions addressed to Bonhoeffer with the reader in mind. These range from the debate about God and the future of Christianity to the involvement of Christians and the church in political struggles today.