Abstract

in Morals by Agreement, David Gauthier assumes that the contractors' preferences are non-tuistic--that they take "no interest in one another's interests." This is the analog of John Rawls's assumption of "mutual disinterest." Gauthier's assumption of non-tuism is ambiguous in important ways and he sometimes shifts between quite distinct meanings. I examine the various plausible interpretations of non-tuism and then critically evaluate Gauthier's justification for assuming that it is only agents' non-tuistic preferences that are to be considered in arriving at an acceptable social contract.