According to Kant, certain concepts, like causation, are not derived from experience but are rather innate to the human mind….. — Wayfarer
Everybody knows the famous one-liners….understanding cannot intuit, intuition cannot think; thoughts without intuition are empty, intuitions without concepts, blind.
The two faculties must work together or we don’t have knowledge….yaddayaddayadda…..how they work together is given by the transcendental deduction of the categories, which…
“….is an exposition of the pure conceptions of the understanding (and with them of all theoretical à priori cognition), as principles of the possibility of experience (….), as the form of the understanding in relation to time and space as original forms of sensibility….” (B169)
So we get from the individual parts, to the unity of their working together, but the question remains as to how to arrive at the one, an internal condition, when the other is given to us, as an external condition. That which is given to us needs no explanation….it’s here, deal with it. But the origins of that which is not given to us, but arises within us, is susceptible to the possibility of having no explanatory power insofar as whatever is claimed for it, can be negated with equal justice.
In general, or, without getting too particular about it, we have knowledge of things from the union of sense and category. Cool. But the human animal can think real objects without them being sensed, re: possible knowledge of possible things. Here’s where the real question comes in….even if no object is given to the senses, but we can think it, does that mean the categories are necessary for those possible objects as equally as for directly sensed objects? The question takes the form….
“…. Now there are only two ways in which a necessary harmony of experience with the conceptions of its objects can be cogitated. Either experience makes these conceptions possible, or the conceptions make experience possible…”
…..so it seems as though the latter must be the case, insofar as the thought of possible objects, which we have, is sufficient for the possible experience of them, which we don’t. If the categories, the pure conceptions, were not necessary for the mere thought of possible objects equally with the thought of real sensed objects, we wouldn’t think them (synthesis of conceptions and all that behind the scenes stuff) and the experience of them, possible or otherwise, would be irrelevant.
So there are conceptions we have, not dependent on experience, but used for both experience and possible experience….but what can be said about them? If they are in us, the where in us can be said to be understanding, the what can be said to be that which makes cognition of objects possible, but what remains is that which states the origin of them. They’re here, they do this and that, but where do they come from?
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Now the fun part, where reader is left to his own devices, depending on the text he’s referencing, either original (“selbstgedachte”) or “self-thought first principles
a priori”. All that being said, what is categorically denied, in addition to the empirical origin of the categories, is the validity of “subjective aptitudes” for this purpose, those being.….
“…. implanted in us contemporaneously with our existence, which were so ordered and disposed by our Creator, that their exercise perfectly harmonizes with the laws of nature which regulate experience…”
…..and even though that sure sounds an awful lot like the innate which may or may not be drawn out of the original German word, depending on the translator’s justifications, the denial of it is pretty cut and dried:
“…. with such an hypothesis it is impossible to say at what point we must stop in the employment of predetermined aptitudes, the fact that the categories would in this case entirely lose that character of necessity which is essentially involved in the very conception of them, is a
conclusive objection to it….”
So it is that Kant grants no authority with respect to the origin of the categories to “subjective attitudes” and if one wishes to associate the innate with such attitudes, he is granted no authority as well.
Apparently, Kant wants it understood that the origin of the categories are reducible only as far as self-thought first principles
a priori, and if that wasn’t vague enough, now arises the question as to
tabula rasa, which seems on the one hand ill-fated insofar as there are self-thought first principles
a priori residing in us, re: the mind does not come blank, but on the other it is reasonable insofar as these are not merely part of our subjective aptitude, re: the mind does come blank.
Time. When does “self-thought” begin”. When do subjective aptitudes develop? If these are not explainable, or are variable, they are not relevant. All that’s needed, for the sake of the consistency of the theory, is the logical function of pure conception within the tenets of a speculative paradigm.
“Shut up and calculate!!” held to the metaphysical fire.