This might be a silly question, but can you argue against opinions? Someone once wrote to me "u can't argue with opinion". Is that true? I would think arguing against a person's opinion happens regularly-- philosophers certainly do it. And I thought that was the plain answer, but I thought about it more and well, question it. It is possible that this someone is already accepting the fact, or assuming that "opinion" is neither true nor false. For example, "It is my opinion that X is beauty, and Y is beauty for you," knowing that there is a difference of opinion, of which both can claim truth, you therefore can't argue with my opinion. This might be a case of relativism, "what's true for me, may not be true for you, etc". Anyways, I just want some clarity with the claim that "u can't argue with opinion."