Reason can only tell us about relations of ideas and matters of fact. Reason is limited to what is the case, empirically. There is a huge gap between what is the case and what ought to be the case. A Critique of Simple Subjectivism 1. It implies that none of us is morally infallible.
Moral disagreement is next to impossible.
Subjectivism is a contradictory theory. Emotivism A. Language Types 1. Fact stating language 2. Language as Commands 3. C. Arguments Against Simple Subjectivism Revisited 1.