Question

David Hume argues that our moral claims are not based on reason, and Gilbert Harman argues that they cannot be based on or tested by observation. Is there any other way we could possibly know that a moral claim is true, other than by argument or observation?

Answer 1

Yes, moral claims can be tested whether they satisfy dogma set by society or government .Moral claims make assertions about persons and their characters, good or bad, or they make assertions about right or wrong ways to act. Moral claims are normative—and any moral claim will either be a moral value claim or a moral prescriptive claim.

There is also other way judge moral claims- Consequentialism is the class of normative ethical theories holding that the consequences of one's conduct are the ultimate basis for any judgment about the rightness or wrongness of that conduct. Thus, from a consequentialist standpoint, a morally right act is one that will produce a good outcome, or consequence