rIn a scientific question, evidence can be adduced on both sides. and in the end one side is seen to have the better case or,if this does not happen, the question is left undecided. But in a question as to whether this or that is the ultimate good. there is no evidence either way: each disputant can only appeal to his own emotions,and employ such rhetorical devices as shall rouse similar emotions in others 2021//21 82021/1/21 8 In a scientific question, evidence can be adduced on both sides, and in the end one side is seen to have the better case -- or, if this does not happen, the question is left undecided. But in a question as to whether this or that is the ultimate Good, there is no evidence either way: each disputant can only appeal to his own emotions, and employ such rhetorical devices as shall rouse similar emotions in others