 On the matter of conscience and how it is related to synderesis, Philip distinguishes them. For one thing, conscience can be mistaken while synderesis cannot. Specifically, conscience is the result of a concurrence of synderesis with free decision (liberum arbitrium). Put otherwise, it is the specific application of a general moral principle that is the outcome of deliberation. When correctly applied, conscience is correct. When incorrectly applied, it errs. In either case, the judgement of conscience generates a moral obligation to act. Philip uses the following example of how synderesis, which is always right, can nonetheless conjoin with an erring conscience (Potts 1980: 104):