Those of us who grew up on Frege were raised to believe that "psychologism" was worse than any four-letter word.* If we smelled the slightest intrusion of psychology into logic, if we heard even the rumor that someone had conflated the laws of logic with empirical psychological laws, we reacted as Akhilleus did to the death of Patroklos. As well we should — we were raised correctly. Logic is not psychology.