We can start with some science fiction. Here on Earth, I enter the Teletransporter. When I press some button, a machine destroys my body, while recording the exact states of all my cells. The information is sent by radio to Mars, where another machine makes, out of organic materials, a perfect copy of my body. The person who wakes up on Mars seems to remember living my life up to the moment when I pressed the button, and he is in (...) every other way just like me. Of those who have thought about such cases, some believe that it would be I who would wake up on Mars. They regard Teletransportation as merely the fastest way of travelling. Others believe that, if I chose to be Teletransported, I would be making a terrible mistake. On their view, the person who wakes up would be a mere Replica of me. (shrink)

On ethical egoism, the fact that I would suffer is no reason by itself for you not to torture me. This may seem implausible—monstrous, even—but what evidence can we offer against it? Here I examine several arguments which receive some expression in Thomas Nagel’s work. Each tries to show that a normative reason to end my pain is a reason for all agents. The arguments in Section 1 emphasize reasons that don’t entail agents and thus purportedly apply to all agents. (...) In Section 2, I examine the Argument from Dissociation, according to which my pain seems bad upon reflection, even without reflecting on its relation to me. Section 3 examines the Argument from Inability, which claims that my occurrent pains would seem bad to me, even if I couldn’t think about their relation to me. Finally, I discuss the Argument from Introspection, according to which I seem, introspectively, to have a reason to end my pain, a reason that has nothing to do with the pain’s being mine. All but one of these arguments fail utterly. The Argument from Introspection provides some grounds for rejecting egoism. (shrink)

What behavior is rational? It’s rational to act ethically, some think. Others endorse instrumentalism — it is rational to pursue one’s goals. Still others say that acting rationally always involves promoting one’s self-interest. Many philosophers have given each of these answers. But these answers don’t really conflict; they aren’t vying to describe some shared concept or to solve some mutually acknowledged problem. In so far as this is debated, it is a pseudo-debate. The different uses of ‘rational action’ differ merely (...) in meaning. I shall defend the following claims: ‘rational behavior’ is used in ethical, prudential, and instrumental ways (section 1); these uses of ‘rational behavior’ are distinct (section 2); they do not represent competing theories of rational behavior (section 3); we should stop using ‘rational behavior’ ethically and prudentially, but we may continue its instrumental use (section 4). (shrink)