Abstract

David Gauthier's Morals by Agreement is an impressive — indeed, daunting — exercise in contractarian moral and political philosophy. The primary purpose of his treatise is to explicate practical rationality as constrained maximization and morality as compliance with these constraints. Gauthier offers an account of which constraints on straightforward utility maximization each rational individual will be prepared to accept and comply with on the condition that other individuals also will accept and comply with them as well as an explanation of why compliance with those constraints counts as morality. However, although Morals by Agreement is in the great tradition of Hobbesian moral and political theorizing, Gauthier's morality by agreement does not begin with the Hobbesian state of nature. Gauthier does not start by envisioning a Hobbesian war of all against all which has been generated by rational individuals, each pursuing his own maximum utility, and then asking what constraints on this no-holds-barred utility maximization would be mutually advantageous and therefore mutually rational