Hossein Jorjani First publication: 2026 – 07 – 20 Modern discussions of essentialism often blur an important distinction between Plato and Aristotle. Although both philosophers are commonly described as essentialists, they understood the location and nature of essences in fundamentally different ways. For Plato, the essence of a thing does not belong to the individualContinue reading “Excursus 106 – Platonic and Aristotelian Essentialism in the Light of Continuous Variation”
Tag Archives: essentialism
Excursus 012 – On Transmutability
Hossein Jorjani First publication: 2026 – 06 – 30 The alchemists’ belief in the fixed “kinds” of metals drew upon the Platonic–Aristotelian tradition of essential forms, according to which each natural substance possessed a defining essence that determined its identity. The repeated failure to transmute one metal into another was taken by many as confirmationContinue reading “Excursus 012 – On Transmutability”
Excursus 011 – On the Concept of Species
Hossein Jorjani First publication: 2026 – 06 – 30 In Aristotelian logic, the species infimae (“lowest species”) occupied the final level of the genus–species hierarchy—the most specific universals that could still apply to more than one individual. They marked the boundary between universal and particular, serving as the lowest kinds that could figure in scientificContinue reading “Excursus 011 – On the Concept of Species”
Hossein Jorjani 