structural:reformatting, structural:scholar_edition, quality:correction, structural:expansion
Belief-in and belief-that

Traditionally, philosophers have mainly focused in their inquiries concerning belief on the notion of belief-that. Belief-that can be characterized as a propositional attitude to a claim which is either true or false. Belief-in, on the other hand, is more closely related to notions like trust or faith in that it refers usually to an attitude to persons. Belief-in plays a central role in many religious traditions in which belief in God is one of the central virtues of their followers. The difference between belief-in and belief-that is sometimes blurry since various expressions using the term "belief in" seem to be translatable into corresponding expressions using the term "belief that" instead. For example, a belief in fairies may be said to be a belief that fairies exist. In this sense, belief-in is often used when the entity is not real, or its existence is in doubt. Typical examples would include: "he believes in witches and ghosts" or "many children believe in Santa Claus " or "I believe in a deity". Not all usages of belief-in concern the existence of something: some are commendatory in that they express a positive attitude towards their object. It has been suggested that these cases can also be accounted for in terms of belief-that. For example, a belief in marriage could be translated as a belief that marriage is good. Belief-in is used in a similar sense when expressing self-confidence or faith in one's self or one's abilities.

Defenders of a reductive account of belief-in have used this line of thought to argue that belief in God can be analyzed in a similar way: e.g. that it amounts to a belief that God exists with his characteristic attributes, like omniscience and omnipotence. Opponents of this account often concede that belief-in may entail various forms of belief-that, but that there are additional aspects to belief-in that are not reducible to belief-that. For example, a belief in an ideal may involve the belief that this ideal is something good, but it additionally involves a positive evaluative attitude toward this ideal that goes beyond a mere propositional attitude. Applied to the belief in God, opponents of the reductive approach may hold that a belief that God exists may be a necessary pre-condition for belief in God, but that it is not sufficient.