https://priorprobability.com/2026/09/19/painless-parasites-how-leeches-saved-one-of-adam-smiths-students/prior probabilityen2026-09-19T00:19:00+00:00Painless parasites: how leeches cured one of Adam Smith’s studentshttps://priorprobability.com/2026/09/18/the-bloodlettings-of-adam-smiths-private-pupil-thomas-petty-fitzmaurice/prior probabilityen2026-09-18T00:18:00+00:00The bloodlettings of Adam Smith’s private pupil Thomas Petty-Fitzmaurice