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ApologiaSophia
Guest
Most philosopher’s would disagree that certainty and knowledge are synonymous. I know my mother loves me, but I’m not certain. I know George Washington was our first president, but I’m not certain. I know the sun will rise tomorrow, but I’m not certain. I know you exist, but I’m not certain. I know I’m not dreaming. ALL knowledge apart from a priori knowledge is based on presuppositions that we cannot prove with absolute certainty. Probability is just as much knowledge as is certainty. Historical knowledge is never certain.I would say that the knowledge of anything must be certain simply by definition. I mean the other alternatives imply that there is a super-knowledge or that knowledge and opinion are not essentially different. All of these are wrong. So then knowledge must be certain to be knowledge. Therefore, let us ask what character the Trinity has in our cognition. Apparently,since we lack proof (in the sense of a proper syllogism), there cannot be a true knowledge of the Trinity and only opinion.
Of course faith is something that we start with in our philosophies but it is no substitute for knowledge and for all premises based on faith, we must endeavor to show that they are either provable or self-evident. Our quest for proving the existence of an external world is basically the quest to show that there are things separate from us. Now if there were not anything so separate then everything would be a modification of us and this would be absurd, for then it opens the possibility that contraries modify each other, that humans never change substantially, and that ultimately God is just a mode of us. The last two are especially bad and especially the former option since then men do not die or get born.
Finally either an external or intersubjective or subjective or internal world exists (the subjective is a mental world, the inter a world governed by mental operations, and the internal a Cartesian world). The internal, subjective world doesn’t exist since then we could not objectify or behold our thoughts or be mistaken about our psychological states. Then either the intersubjective or external worlds exist. The intersubjective world doesn’t exist for the reason that it amounts to a perfectly functioning subjective world. We already disproved that one exists. Therefore the external world exists.
It is not necessarily to how that there exist things separate from us, but whether our experience of the external worlld is reliable. If I am plugged into the matrix, or if this is a dream, that does not pressupose that nothing exists separate from myself.
As far as internal and external worlds, I disagree with your first contention. First, even if the external world exists, it woulld be erroneous to say an internal world exist. The problem is not whether the external world exists, but proving it with certainty. It is not something you can just prove with process of elimination, as you did above. The fact you would not be able to know your psychological mistakes is irrelevant on this matter.
Is a dream a perfectly functioning subjective world? It is not. So prove the external world is not actually a dream and that you are plugged into a matrix.
I would agree it is unreasonable to disbelieve in the external world. My point is that we can have reasonable knowledge of things without having absolute certainty about such things.