Then there is the man with a conscience, who fights single-handedly against heavy odds in situations that call for a decision. - Dietrich Bonhoeffer

Costly grace is the gospel which must be sought again and again, the gift which must be asked for, the door at which a man must knock. Such grace is costly because it calls us to follow, and it is grace because it calls us to follow Jesus Christ. It is costly because it costs a man his life, and it is grace because it gives a man the only true life. It is costly because it condemns sin, and grace because it justifies the sinner.

“Blessed are they that mourn, for they shall be comforted.” With each beatitude the gulf is widened between the disciples and the people, their call to come forth from the people becomes increasingly manifest. By “mourning” Jesus, of course, means doing without what the world calls peace and prosperity: He means refusing to be in tune with the world or to accommodate oneself to its standards. Such men mourn for the world, for its guilt, its fate, and its fortune.

At the end of a life spent in the pursuit of knowledge Faust has to confess: "I now see that we can nothing know." That is the answer to a sum, it is the outcome of a long experience. But as Kierkegaard observed, it is quite a different thing when a freshman comes up to the university and uses the same sentiment to justify his indolence. As the answer to a sum it is perfectly true, but as the initial data it is a piece of self-deception.