"It is only in I960 that Lacan develops his classic opposition between jouissance and pleasure, an opposition which alludes to the Hegelian/Kojevian distinction between Genuβ (enjoyment) and Lust (pleasure) (cl. Kojève, 1947: 46). The pleausure principle functions as a limit to enjoyment; it is a law which commands the subject to ‘enjoy as little as possible’. At the same lime, the subject constantly attempts to transgress the prohibitions imposed on his enjoyment, to go ‘beyond the pleasure principle’. However, the result of transgressing the pleasure principle is not more pleasure, but pain, since there is only a certain amount of pleasure that the subject can hear. Beyond this limit, pleasure becomes pain, and this ‘painful pleasure’ is what Lacan calls jouissance: 'jouissance is suffering' (S7. 184). The term jouissance thus nicely expresses the paradoxical satisfaction that the subject derives from his symptom, or, to put it another way, the suffering that he derives from his own satisfaction (Frend's ‘primary gain from illness’)." ~ Dylan Evans, An Introductory Dictionary of Lacanian Psychoanalysis.