 Then why didn’t Moore say so—or at least, why didn’t he attribute the desire-to-desire definition to its original inventor? Because Russell propounded his definition at a meeting of the Apostles, a supposedly secret society. The rather priggish Moore took the code of secrecy very seriously and used to fuss about discussing the doings of the Apostles by postcard in case they were read in transit. (The slightly less priggish Russell had to reassure him that only college porters were likely to read them and only initiates would understand.) To have attributed the desire-to-desire theory to an Apostolic paper of Russell’s would have broken the code of silence (a code designed to promote the unfettered exchange of honest opinion).