He attended mathematics lectures by Playfair, science lectures by Joseph Black (a chemist who had discovered latent heat in 1761), Alexander Monro (a physician who held the chair of anatomy) and John Robison, and philosophy lectures from Dugald Stewart (son of Matthew Stewart and holder of the chair moral philosophy).
Siya pumasok sa matematika lektura sa pamamagitan ng Playfair, science lektura sa pamamagitan ng Joseph Black (isang parmasya na natuklasan latent init sa 1761), Alexander Monro (isang manggagamot na gaganapin sa silya ng Anatomiya) at John Robison, at pilosopiya lektura mula sa Dugald Stewart (anak ng Matthew Stewart at may-hawak ng upuan sa moral pilosopiya).