I am reading Church Dogmatics VI.1, sections 57-59, and I just had a moment. Okay, I have all sorts of great moments in reading Barth so far, but something that stood out this morning is the comment below. The reason it struck me is because the hopeful orientation of the Christian to the incoming (and currently in-breaking) power of the new age of salvation is unstoppable, providing for us the disposition of hopeful realism rather than idealism (an illusory denial of the death and injustice of our ex-Eden world) or cynicism (the embittered embrace of current reality without hope in a future reality). This re-ordering of our disposition is the premise and challenge of my work in Faith Without Illusions. Here is Barth saying something that sounds very similar (and with greater clout!)….
“…perhaps [the Christian] is most clearly distinguished from the non-Christian by the fact that, directed to the great hope, and without any illusions, he does not fail and is never weary to live daily in these little hopes. But this necessarily means that he is daily willing and ready for the small and provisional and imperfect service of God which the immediate future will demand of him because a great and final and perfect being in the service of God is the future of the world and all men, and therefore his future also.” 
 Karl Barth, Church Dogmatics; ed. G.W. Bromiley, T.F. Torrance (vol IV.1, The Doctrine of Reconciliation; tr. George W. Bromiley; London: T & T Clark International, 2004), 121-22.