In an overlooked section of his influential book What We Owe to Each Other Thomas Scanlon advances an argument against the desire-model of practical reasoning. In Scanlon’s view the model gives a distorted picture of the structure of our practical thinking. His idea is that there is an alternative to the “weighing behavior” of reasons, a particular way in which reasons can relate to each other. This phenomenon, which the paper calls “silencing”, is not something that the desire-model can accommodate, (...) or so Scanlon argues. The paper first presents and interprets Scanlon’s challenge. After this, the paper argues, through the examination of three responses, that Scanlon is right in claiming that the model cannot accommodate the phenomenon as he describes it. However, the paper further argues that there is no need to accept Scanlon’s depiction of silencing: advocates of the model can give an alternative account of what happens in cases of silencing that is just as plausible as Scanlon’s own. Scanlon’s challenge is thus, the paper concludes, illegitimate. (shrink)

I will begin this paper by identifying the problem within the theory of ethics, which contractualism as a moral theory is attempting to address. It is not that of solving the problem of moral motivation like the ‘arch-contractualist’, Thomas Scanlon, often claims, but rather that of describing a class of fundamental moral reasons – contractualist reasons for short. In the second section, I will defend the contractualist idea of how the nature of these moral reasons provides us with sufficient, independent (...) tools to construct the content of public moral principles. The rest of my paper is defensive. It addresses the main challenges set to the contractualist account of moral reasons. In the third section, I will discuss a frequent objection according to which the contractualist reasons are a redundant addition to the space of moral reasons. In the fourth section, I will examine the worry that acting from these reasons would not lead to morally admirable action but rather to vice. In the last section, I will investigate the criticism according to which the normative force of the contractualist reasons is insufficient for rationalising our moral actions in certain difficult circumstances. In this section, we get to the heart of the matter – what the reasons contractualism describes truly are, and how they can explain the generally overriding strength of our moral requirements. I hope to conclude that even after these serious challenges contractualism remains a philosophically viable account of morality's rationalistic appeal. (shrink)