Environmental Ethics & Self-Evident Intuitions

Must be 300 words or more and have at least 3 academic sources cited in APA

Prompt:

Westermarck writes, "…a theory which leads to an examination of the psychological and historical origin of people's moral opinions should be more useful than a theory which postulates moral truths enunciated by self-evident intuitions that are unchangeable". Agree or disagree and give your reasons.