What is the temperature of the room you are in? Can you give an exact value? The temperature varies with position, with time - there is no exact temperature... perhaps for one moment you could know the velocity of one atom in the room? but then the moment would be gone, and the velocity changed.... such is knowledge.
Inexact, fallible... But still knowledge. And despite such fuzzy cases, there are plenty of cases that we can be as precise as we wish- if I ask whether you know whats on TV at 7 pm I don't care whether it is in fact starting at 7:01.013 or 6:59.997, I want to know whether the game is on or not. If you know, I'm happy. Different types of knowledge admits of varying degrees of precision- this doesn't mean that knowledge
doesn't exist, or that it isn't different from mere
belief.
The more you know, the more you know you don't know...
Sure. Which itself sort of presupposes a realist conception of knowledge, else this saying doesn't make much sense.
The only thing we can really control, is our self - that is the only thing we can come to know and define, is our self, this is the highest Perry level, knowing yourself, and acting in accordance with your own conscience.
Perry levels are real, many universities use them to design "open ended" courses, students and professionals are tested on their levels, it's a natural progression for most people.
That may be- but as I pointed out to you, it's irrelevant. Just because people are more likely to hold a certain position as they get older or go to school doesn't mean that this position is
accurate; I would imagine that there's a positive correlation between age and belief in the afterlife, or college education and disbelief in God, but in neither of these cases does this constitute an argument for or evidence of the truth of the belief in question.