Coba jelasin Catatan dari Bernard Williams dong

Nagel, Thomas. "Moral Luck", Mortal Questions, Cambridge: Cambridge University Press, 1979.

Nagel, Thomas. "Sir Bernard Williams", Encyclopædia Britannica.

Perry, Alexandra; Herrera, Chris. The Moral Philosophy of Bernard Williams, Newcastle: Cambridge Scholars Publishing, 2011.

Kant, Immanuel. Groundwork for The Metaphysics of Morals. Peterborough, Ont. ; Orchard Park, NY : Broadview Press, 2005.