How should you take into account the opinions of an advisor? When you completely defer to the advisor's judgment, then you should treat the advisor as a guru. Roughly, that means you should believe what you expect she would believe, if supplied with your extra evidence. When the advisor is your own future self, the resulting principle amounts to a version of the Reflection Principle---a version amended to handle cases of information loss. When you count an advisor as an epistemic (...) peer, you should give her conclusions the same weight as your own. Denying that view---call it the ``equal weight view''---leads to absurdity: the absurdity that you could reasonably come to believe yourself to be an epistemic superior to an advisor simply by noting cases of disagreement with her, and taking it that she made most of the mistakes. Accepting the view seems to lead to another absurdity: that one should suspend judgment about everything that one's smart and well-informed friends disagree on, which means suspending judgment about almost everything interesting. But despite appearances, the equal weight view does not have this absurd consequence. Furthermore, the view can be generalized to handle cases involving not just epistemic peers, but also epistemic superiors and inferiors. (shrink)

Sidgwick's Methods of Ethics appears to defend a revised utilitarianism against both egoism and intuitionism, while conceding that the practical results of enlightened egoism largely coincide with those of utilitarianism, and that the utilitarian greatest happiness principle can be justified only as a fundamental intuition. It is true that Sidgwick was distressed by the description of his treatment of intuitional morality as ‘mere hostile criticism from the outside', and protested that that morality ‘is my own … as much as it (...) is any man's; it is, as I say, the “Morality of Common Sense”, which I only attempt to represent so far as I share it’. However, he could not well have denied that, in The Methods of Ethics, the endorsement tentatively accorded to intuitional morality as a system is in the end withdrawn. Ultimately it is concluded that utilitarianism can define and correct what intuitional morality is vague or mistaken about, and can complete what common sense does not venture to treat at all. (shrink)

Sidgwick famously claimed that an argument in favour of utilitarianism might be provided by demonstrating that a set of defensible philosophical intuitions undergird it. This paper focuses on those philosophical intuitions. It aims to show which specific intuitions Sidgwick endorsed, and to shed light on their mutual connections. It argues against many rival interpretations that Sidgwick maintained that six philosophical intuitions constitute the self-evident grounds for utilitarianism, and that those intuitions appear to be specifications of a negative principle of universalization (...) (according to which differential treatments must be based on reasonable grounds alone). In addition, this paper attempts to show how the intuitions function in the overall argument for utilitarianism. The suggestion is that the intuitions are the main positive part of the argument for the view, which includes Sidgwick's rejection of common-sense morality and its philosophical counterpart, dogmatic intuitionism. The paper concludes by arguing that some of Sidgwick's intuitions fail to meet the conditions for self-evidence which Sidgwick himself established and applied to the rules of common-sense morality. (shrink)