Tulisan ini bertujuan untuk membahas secara mendalam etika Prima Facie Duties ciptaan William David Ross. Prima Facie Duties merupakan teori etika yang didasari oleh dua konsep dasar yaitu konsep ketepatan dan konsep kebaikan. Kedua konsep inilah yang mendasari kewajiban dalam Prima Facie Duties yaitu duty of fidelity, duty of gratitude, duty of reparation, duty of beneficence, duty of justice, duty of self-improvement, dan, duty of non-maleficience. Tulisan ini juga memberikan perbandingan Prima Facie Duties dengan Ideal Utilitarian Moore dan Deontology Kantian, dan Moral Relativism untuk memberikan suatu gambaran jelas apa yang menjadi corak khas dari Prima Facie Duties. Dalam tulisan ini juga dimasukan kritik dari John Rawls kepada intuisionisme dan juga tanggapan berdasarkan Prima Facie Duties terhadap kritik tersebut yang berupa improvisasi penting bagi Prima Facie Duties yaitu sistem prioritas.

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The point of this essay is to explain deeply the Prima Facie Duties ethics which were made by W.D. Ross. Prima Facie Duties is an ethical theory based on two main concept which is right and good. These two central concept become the base of the seven duties which are duty of fidelity, duty of gratitude, duty of reparation, duty of beneficence, duty of justice, duty of self-improvement, and duty of non-maleficience. There is also comparison of Prima Facie Duties with Moore Ideal Utiliarianism, Kantian Deontology, and Moral Relativism to show the main characteristic of Prima Facie Duties. Critics from John Rawls against ethical intuitionism is also included with the solution for Prima Facie Duties based on John Rawls critics which improves Prima Facie Duties in the form of priority system.