Phil 160. Philippa Foot: “Morality as a System of Hypothetical Imperatives”. Kant’s Distinction (to rehash). A duty is a kind of obligation, and Kant says that there are two sorts of obligations (or imperatives):
Philippa Foot: “Morality as a System of Hypothetical Imperatives”
What Foot disagrees with is the motivational force that is supopsed to come along with a categorical imperative. If someone knows what morality demands are they necessarily motivated to follow it, or only contingently motivated to follow it?