 Some final observations can be made using Roderick Firth’s (1978) distinction between propositional and doxastic justification. Proposition p has propositional justification for S if and only if, given the grounds S possesses, p would count as rational. That p has propositional justification for S does not require that S actually base p on these grounds, or even that S believe p. Whether S’s belief has doxastic justification depends on S’s actual grounds for believing p: if, on these grounds, p would count as rational, then p possesses doxastic justification. Consider the following principles: