... meaning of the predicate term is not implicitly contained in the subject term. Relations of Idea claims are analytical and are true by definition. Most often these claims are found in the field of mathematics. The subject of the claim implicitly contains the meaning of the predicate term. Moral assertions however, according to Hume, do not fit into either category. Since any moral assertion has its root in a feeling of benevolence and it is impossible to empirically measure a feeling, they cannot be given validity as Matters of Fact. An incident like patricide can be used as an example. The facts of the event can be measured and recorded, the type of weapon, the various aspects of the scene, the physical dimension of those involved. It cannot be calculated how wrong it was, the color of malice involved, the weight of the anger that led to the crime. ...

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