Ethical Realism

November 10, 2009

Objections to Moral Realism Part 4: Moral Beliefs Can’t Motivate

There is evidence that moral values involve desires. When we say “human life has intrinsic value,” we expect a desire to promote human life and a pro-attitude towards human life. The connection between moral beliefs and desires is not clear, and some people have argued that morality is only about desires. If morality is only about desires, then we should reject the existence of intrinsic values because our intrinsic value beliefs would merely state our desires. These concerns reflect Humean psychology, which states that there are beliefs and desires, and beliefs can’t motivate. Mark Platts, John Searle, and others have disputed Humean psychology. Although not all philosophers agree with Humean psychology, I will not question it here. Instead, I will attempt to prove that Humean psychology is compatible with moral realism. (more…)


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