When we were doing the second World War in class twelve, one of the activities we did was to pick up one of the characters mentioned in the textbook, do some research on what it was like to be them, and then present a sort of profile in the class. One of my favourites was when Sonia took off her shoes, kneeled in them, and explained in the most matter-of-fact way possible what it was like to be a dwarf during Hitler's reign. I, true to form, only read the entire chapter for research, and came up with an elocution piece. One of my better executions of the dramatic and crusading style that I used at every opportunity. A Professor's dilemma. That free thought, non-fascist thought, should be stifled because people were seduced by the prospect of 'Arbeit und Brot' (work and bread: I remember because at the crucial point when I was about to drop this nativism, I forgot the words and had to check my note, ruining the effect in my own opinion). A thoroughly classist and condescending intellectual position, but true-to-life frequently enough for all that. At the time, the point was to do something impressively anti-Nazi, and I couldn't think of another problem a professor would have with him other than degrading the quality of human thought to mundane considerations, and falsely at that.
Reading the jurists Hart and Fuller on Gustav Radbruch, another possible dilemma comes to light. Radbruch, a hearty legal positivist before the Nazi regime, did a volte-face on the main question: the separation of law from morality. The positivist saw law as law, to put it inconsequentially, meaning that law was a thing apart from moral value, that its validity was entirely independent on its perceived moral value. Moral value only came into play when an individual confronted the existing body of law, and considered his position with respect to it. If it appeared to him evil, he was free to disobey, and indeed it would be his duty to do so.
Afterwards, he noted the difficulty of individual conscientious objection to stem the effects of evil law—the Nazis' manipulation of the rhetoric of legality, and the German legal profession's entire capitulation to the system so put in place—and concluded that positivism contributed to the horrors of that time.
This is Hart's formulation of the problem: that Radbruch didn't trust people enough (based on more or less an exceptional circumstance), and so got the law into dubious tangles like disguised retrospective legislation. Moreover, he reasserts that moral values are not so singular and harmonious. They might conflict in particular situations or people may hold entirely opposing ideas of what is moral. Things are not as simply good or evil as the Nazi circumstance would have us believe.
Fuller, on the other hand, makes the point that Hart's clear distinction between 'law' and 'good law', or (that which it ensures) 'order' and 'good order', is not quite tenable. For one thing, 'order' in itself is not free from a 'moral element': meaning that the idea of what constitutes an orderly co-habitation in society derives validity and sustenance from moral principles. For instance, the success of a system of rules may be based in part on coercion, but more importantly is based on 'ethics' in the other sense: of working with discipline, of showing care with consistency, and so on. The other difficulty is where to draw the line between what is essential and what is changeable in the law, or if you prefer, how much change is a change of degree, and how much is a change in kind. In such a situation, positivism does not help: it says either agree or disobey, which is a static sort of idea, to say the least.
From this comes his disagreement with Hart: this polarity, in his words, 'never gives any coherent meaning to the moral obligation of fidelity to law'. In a sense, in seeking to uphold the inviolability of law, this view robs it of substance. Why is fidelity to law so important? Is it pretending to the status of a physical law, while at the same time requiring our consent for its continued operation? Fuller says no; it's a 'collaborative human achievement in need of constant renewal'.
For that professor in Berlin—now a professor of law, and not of history—the question would be how to say no under the condition of positivism, or else how to collaborate to produce better law without himself being contaminated, or endorsing the wrong that went on in the name of law in the meanwhile. Captain von Trapp ran away, but the armed forces never have as constructive a role to play, and especially in a time of war their powers are rarely vis-a-vis the home country, and much less freely exercised. When the soldiers come to take him—or me, in my narration—how shall I decide? Perhaps it is easier to decide and act well upon it, than to be certain that the action was the righter one.