In Bridges to the World, I found very interesting Russel's distinction between fallibility and extreme skepticism. While the former questions the truth of individual claims or beliefs, the latter questions the truth of all claims or beliefs all at once. This extreme form of skepticism self-destructs, because it eliminates any measure of truth by which to determine its own veracity. Also very importantly, this situation makes clear that fallibility requires some measure of truth in order to determine falsehood. It is therefore very important, when operating with fallibility, to keep in mind that there does exist some truth to be recognized.
Is it possible to imagine a world that involves neither truth nor falsity?