Orthodox Humeans about normative reasons for action believe that there are no rational principles governing the substantive content of desire. But they also believe that desires with misinformed content should be rejected and cannot be the proper subjective sources of normative reasons for action. These two ideas, I argue, in fact stand in tension with each other: The Humean rejection of misinformed desire actually has to invoke a feasibility principle for desire, a semi-substantive rational principle that is already built into (...) the very conceptions of rationality and desire that underlie orthodox Humeanism. This rational principle then provides a new account of the substantive rationality of desire, which in turn has some interesting implications in metaethics and first-order normative theories. (shrink)

There is a simple but powerful argument against the human practice of raising and killing animals for food (RKF for short). It goes like this: 1. RKF is extremely bad for animals. 2. RKF is only trivially good for human beings Therefore, 3. RKF should be stopped. While many consider this argument decisive, not everyone is convinced. There have been four main lines of objection to it. In this paper, I provide new responses to these four objections.