Derrida calls the first aporia, “the epoche of the rule” (Deconstruction and the Possibility of Justice, pp. 22–23). Our most common axiom in ethical or political thought is that to be just or unjust and to exercise justice, one must be free and responsible for one’s actions and decisions. Here Derrida in effect is asking: what is freedom. On the one hand, freedom consists in following a rule; but in the case of justice, we would say that a judgment that simply followed the law was only right, not just. For a decision to be just, not only must a judge follow a rule but also he or she must “re-institute” it, in a new judgment. Thus a decision aiming at justice (a free decision) is both regulated and unregulated. The law must be conserved and also destroyed or suspended, suspension being the meaning of the word “epoche.” Each case is other, each decision is different and requires an absolutely unique interpretation which no existing coded rule can or ought to guarantee. If a judge programmatically follows a code, he or she is a “calculating machine.” Strict calculation or arbitrariness, one or the other is unjust, but they are both involved; thus, in the present, we cannot say that a judgment, a decision is just, purely just. For Derrida, the “re-institution” of the law in a unique decision is a kind of violence since it does not conform perfectly to the instituted codes; the law is always, according to Derrida, founded in violence. The violent re-institution of the law means that justice is impossible. Derrida calls the second aporia “the ghost of the undecidable” (Deconstruction and the Possibility of Justice, pp. 24–26). A decision begins with the initiative to read, to interpret, and even to calculate. But to make such a decision, one must first of all experience what Derrida calls “undecidability.” One must experience that the case, being unique and singular, does not fit the established codes and therefore a decision about it seems to be impossible. The undecidable, for Derrida, is not mere oscillation between two significations. It is the experience of what, though foreign to the calculable and the rule, is still obligated. We are obligated – this is a kind of duty—to give oneself up to the impossible decision, while taking account of rules and law. As Derrida says, “A decision that did not go through the ordeal of the undecidable would not be a free decision, it would only be the programmable application or unfolding of a calculable process” (Deconstruction and the Possibility of Justice, p. 24). And once the ordeal is past (“if this ever happens,” as Derrida says), then the decision has again followed or given itself a rule and is no longer presently just. Justice therefore is always to come in the future, it is never present. There is apparently no moment during which a decision could be called presently and fully just. Either it has not followed a rule, hence it is unjust; or it has followed a rule, which has no foundation, which makes it again unjust; or if it did follow a rule, it was calculated and again unjust since it did not respect the singularity of the case. This relentless injustice is why the ordeal of the undecidable is never past. It keeps coming back like a “phantom,” which “deconstructs from the inside every assurance of presence, and thus every criteriology that would assure us of the justice of the decision” (Deconstruction and the Possibility of Justice, pp. 24–25). Even though justice is impossible and therefore always to come in or from the future, justice is not, for Derrida, a Kantian ideal, which brings us to the third aporia. The third is called “the urgency that obstructs the horizon of knowledge” (Deconstruction and the Possibility of Justice, pp. 26–28). Derrida stresses the Greek etymology of the word “horizon”: “As its Greek name suggests, a horizon is both the opening and limit that defines an infinite progress or a period of waiting.” Justice, however, even though it is un-presentable, does not wait. A just decision is always required immediately. It cannot furnish itself with unlimited knowledge. The moment of decision itself remains a finite moment of urgency and precipitation. The instant of decision is then the moment of madness, acting in the night of non-knowledge and non-rule. Once again we have a moment of irruptive violence. This urgency is why justice has no horizon of expectation (either regulative or messianic). Justice remains an event yet to come. Perhaps one must always say “can-be” (the French word for “perhaps” is “peut-être,” which literally means “can be”) for justice. This ability for justice aims however towards what is impossible.