What about our moral beliefs, those pertaining to what we consider virtuous? Our daily conversations with others presuppose the need to provide justification for our beliefs. But what exactly counts as justification?
Indeed, what will legitimately serve as adequate grounds for our beliefs and actions is often disputed. Many times the contention revolves around what one party thinks is based on reason (i.e., conclusions reached by deduction or induction from concepts or empirical data) rather than emotion (i.e., internal sentiments, impulses, or feelings). And the other party might take sentiment to be quite adequate grounding, or at least part of it.