Social justice is an application of the law of love to the sociopolitical sphere, and love is the motivating energy of the struggle for justice. The … - Reinhold Niebuhr

Nothing that is worth doing can be achieved in our lifetime; therefore we must be saved by hope. Nothing which is true or beautiful or good makes complete sense in any immediate context of history; therefore we must be saved by faith. Nothing we do, however virtuous, can be accomplished alone; therefore we are saved by love. No virtuous act is quite as virtuous from the standpoint of our friend or foe as it is from our standpoint. Therefore we must be saved by the final form of love which is forgiveness.

Liberal democracy is worth defending, not because it fulfills a moral ideal or because modern civilized types deserve nothing less, but because it is the best way to restrain human egotism and will-to-power.

All this is rather tragic. For what the individual conscience feels when it lifts itself above the world of nature and the system of collective relationships in which the human spirit remains under the power of nature, is not a luxury but a necessity of the soul. Yet there is beauty in our tragedy. We are, at least, rid of some of our illusions. We can no longer buy the highest satisfactions of the individual life at the expense of social injustice. We cannot build our individual ladders to heaven and leave the total human enterprise unredeemed of its excesses and corruptions.