Intuitionism - W.D. Ross

W.D. Ross  accepted Moore's argument that goodness cannot be defined in natural terms and argued that moral principles cannot be absolute

Ross developed prima facie (meaning 'at first appearance') duties 

• Ross believed that, in a moral dilemma, the various duties/obligations that we have are apparent
• A prima facie dutie is a moral obligation that binds us to follow it unless there is an overriding obligation
• The seven foundational prima facie duties Ross acknowledged were: promise-keeping, reparation for harm done, gratitude, justice, beneficence, self-improvement and non-maleficence; these prima facie principles emphasise a personal character of duty rather than one set on certain absolutes
• The prima facie duties are important for moral decision-making, but ultimately, choosing is a matter of judgement as the duties do not tell us what to do
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