There is not a place to which the Christian can withdraw from the world, whether it be outwardly or in the sphere of the inner life. Any attempt to escape from the world must sooner or later be paid for with a sinful surrender to the world.
Dietrich BonhoefferWith an abstract idea it is possible to enter into a relation of formal knowledge, to become enthusiastic about it, and perhaps even to put it into practice; but it can never be followed in personal obedience. Christianity without the living Christ is inevitably Christianity without discipleship, and Christianity without discipleship is always Christianity without Christ.
Dietrich Bonhoeffer