tion to it that which cannot possibly be, and between these two lies that which can both be and not be, – thus that which comes into being and passes away, and this would then be the contingent. In accordance with what has been said above, it is clear that this explanation, like so many of Aristotle's, has resulted from sticking to abstract conceptions without going back to the concrete and perceptible, in which, however, the source of all abstract conceptions lies, and by which therefore they must always be controlled. "Something which cannot possibly not be" can certainly be thought in the abstract, but if we go with it to the concrete, the real, the perceptible we find nothing to support the thought, even as possible, – as even merely the asserted consequent of a given reason, whose necessity is yet relative and conditioned.
I take this opportunity of adding a few further remarks on these conceptions of modality. Since all necessity rests upon the principle of sufficient reason, and is on this account relative, all apodictic judgments are originally, and according to their ultimate significance, hypothetical. They become categorical only through the addition of an assertatory minor, thus in the conclusion. If this minor is still undecided, and this indecision is expressed, this gives the problematical judgment.
What in general (as a rule) is apodictic (a law of nature), is in reference to a particular case only problematical, because the condition must actually appear which brings the case under the rule. And conversely, what in the particular as such is necessary (apodictic) (every particular change necessary through the cause), is again in general, and predicated universally, only problematical; because the causes which appear only concern the particular case, and the apodictic, always hypothetical judgment, always expresses merely the general law, not the particular case directly. All this has its ground in the fact that possibility exists only in the province of reflection and for the reason; the actual, in the province of perception and for
