There is a consensus that Kant's aim in the Groundwork is to clarify, systematize and vindicate the common conception of morality. Philosophical theory hence serves a restorative function. It can strengthen agents' motivation, protect against self-deception and correct misunderstandings produced by uncritical moral theory. In this paper, I argue that Kant also corrects the common perspective and that Kant's Groundwork shows in which senses the common perspective, even considered apart from its propensity to self-deception and without being influenced by misleading (...) theory, is deficient. Critical practical philosophy needs to set right agents about the stringency of some of their duties, and agents need to be made aware that they have certain other duties. I discuss how Kant corrects the common agent's notion of the stringency of the duty to not make false promises and how Kant corrects the common agent's notion of duties to self. I finally discuss how his critical practical philosophy can become popular and achieve the correction of the common perspective. I stress the role of education informed by philosophical theory for this and contrast it with so called ‘popular philosophy’. (shrink)

Kant considers eudaimonism as his main opponent and he assumes that his ethics is the only viable alternative to eudaimonism. He does not explicitly address theories differing from both eudaimonism and from his own. I argue that whilst Kant and Act-Consequentialists advocate different normative principles, their positions share the important abstract feature that they establish what is to be done from a rational principle and not based on what is in the self-interest of the respective agent, as Kant thinks eudaimonism (...) does. Act-Consequentialism is thus closer to Kant’s ethics than is often assumed. I will demonstrate and vindicate this point with a new interpretation of the Fact of Reason. This reading also establishes that the notion of a Fact of Reason is less contentious than many of Kant’s critics believe. We should not expect that the Fact establishes Kantianism. Instead, the Fact is only supposed to count against a specific competing view of morality, namely, eudaimonism. Act-Consequentialists can accept the Fact as well. (shrink)