ABSTRACT The article considers various arguments put forward, on the subject of ‘sexual justice’, by Janet Radcliffe Richards in her book, The Sceptical Feminist: a Philosophical Enquiry. These arguments rest upon a version of ‘the difference principle’, and owe much to the exposition of this principle by John Rawls. It is argued that Radcliffe Richards fails to support her argument for sexual justice by reference to the difference principle. Indeed, it is argued that reliance by Radcliffe Richards upon this principle (...) vitiates her advocacy of sexual justice. The article concludes by putting forward an obvious alternative to the difference principle; and with a suggestion as to why Radcliffe Richards fails to acknowledge the strength of this alternative. (shrink)