Moral noncognitivism
Moral noncognitivism (or expressivism) is the view that moral statements (such as "it's wrong to kill people") are neither true nor false, as cognitivist theories like moral realism or moral relativism assert. Instead they express feelings (emotivism) or prescribe commands (prescriptivism).
"Judgments, judgments of value about life, for it or against it, can in the end never be true: they have value only as symptoms, they are worthy of consideration only as symptoms; in themselves such judgments are meaningless."
Emotivism[edit]
On this theory, moral statements such as the above simply equal "boo to hurting people willfully", or similar.
Prescriptivism[edit]
Here, such statements are equivalent to "You must not hurt other people willfully". This can also be construed as applying to everyone else (universal prescriptivism), so the previous statement equals "No one must hurt other people willfully".
