Hot Vs Cold, Right Vs Wrong?
Sorry for my misunderstanding. But cleanliness may not be a priori. Prehistoric humans would be like animals, in the sense that they don’t care. Then after they evolved they started to find out certain things cause sickness, like excretion- so they developed this idea and conscioussness of cleanliness. It wasn’t present before. It is now in all humans because they all evolved. Unless it had taken place in the humanoids before Adam AS
Existence of yourself, at least, is a self evident reality. Existence of other people is technically not. If you have to doubt your skills because of evolution that doesn’t mean that evolution is wrong. I am also planning what I should do. Should I give any importance to this disgust- is it just an emotion with no ground in reality? Etc etc You need a worldview like that- but it doesn’t mean it is true. The nafs? Why can’t the brain and it’s tendencies evolve? Of course the people who are more careful genetically due to chemicals will survive and through the ages they will be the only ones left. Same way as a survival tactic, our brain associates ‘uncleanliness’ with things that cause harm, or things that resemble those things etc. They are not sound minded then, are they? And you have no evidence to my knowledge that there is any ‘a priori’ knowledge. Your claim had the same foundation as mine- assumption.
We may have a priori knowledge, but I am saying the source of that could be evolution- and it seems likely. The term then, a priori would not fit the definition fully though. It would better be described as a generic disposition due to natural processes and environment.