Yes. Because if it was knowledge about the belief that knowledge is a kind of belief and you knowingly went against that knowledge then you would lying. Please Register or Log in to view the hidden image! Possibly, and also possibly they have been shown to be flawed just as quickly. Please Register or Log in to view the hidden image! I would argue that knowledge can only ever be relative to the assumptions that you work with, that truth is subjective which in turn makes knowledge subjective, which thus removes any need for endless regression. I guess it is only when you search for knowledge as an objective position that you might come stuck in such infinity. I'm not saying that you cannot go direct to knowledge, but knowledge is a subset of belief: by forming direct knowledge you automatically form a belief in which the knowledge is encapsulated, which is both true and justified. It is not, as you have exampled, always a case of going: "I believe X, I believe it for this reason, now let's go and see if it's true". But whenever you arrive at knowledge, directly or not, it is part and parcel of an accompanying belief and justification. If you disagree then just try to think of something you know that you don't also believe.