This is a requirement of reason, which announces its cognition as determined a priori and as necessary, either in itself- and in this case it needs no grounds to rest upon- or, if it is deduced, as a member of a series of grounds, which is itself unconditionally true.
SECTION III.System of Transcendental Ideas.
We are not at present engaged with a logical dialectic, which makes complete abstraction of the content of cognition and aims only at unveiling the illusory appearance in the form of syllogisms.Our subject is transcendental dialectic, which must contain, completely a priori, the origin of certain cognitions drawn from pure reason, and the origin of certain deduced conceptions, the object of which cannot be given empirically and which therefore lie beyond the sphere of the faculty of understanding.We have observed, from the natural relation which the transcendental use of our cognition, in syllogisms as well as in judgements, must have to the logical, that there are three kinds of dialectical arguments, corresponding to the three modes of conclusion, by which reason attains to cognitions on principles; and that in all it is the business of reason to ascend from the conditioned synthesis, beyond which the understanding never proceeds, to the unconditioned which the understanding never can reach.
Now the most general relations which can exist in our representations are: 1st, the relation to the subject; 2nd, the relation to objects, either as phenomena, or as objects of thought in general.If we connect this subdivision with the main division, all the relations of our representations, of which we can form either a conception or an idea, are threefold: 1.The relation to the subject; 2.The relation to the manifold of the object as a phenomenon; 3.The relation to all things in general.