[T]he rightness of a right action lies solely in the origination in which the act consists, whereas the intrinsic goodness of an action lies solely in its motive; and this implies that a morally good action is morally good not simply because it is a right action but because it is a right action done because it is right, i.e., from a sense of obligation.

(H. A. Prichard, “Does Moral Philosophy Rest on a Mistake?” Mind, n.s., 21 [January 1912]: 21-37, at 30)