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Porphyry advocates for vegetarianism on both spiritual and ethical grounds, applying arguments from his own school of Neoplatonism to counter those in favor of meat-eating from the Stoic, Peripatetic, and Epicurean schools. Porphyry argues that there is a moral obligation to extend justice to animals because they are rational beings.
Porphyry's invention of the "Porphyrian Tree" is noted as the first proper commentary made on Aristotle's work. A replica of the Arbor porphyriana (Porphyrian tree) used to comment on Aristotle's work by Purchotius (1730), Boethius (6th century), and Ramon Llull (ca. 1305).
The work is celebrated for prompting the medieval debate over the status of universals. Porphyry writes Porphyry writes For the moment, I shall naturally decline to say, concerning genera and species, whether they subsist, whether they are bare, pure isolated conceptions, whether, if subsistent, they are corporeal or incorporeal, or whether ...
Porphyrian trees by three authors: Purchotius (1730), Boethius (6th century), and Ramon Llull (ca. 1305). In philosophy (particularly the theory of categories), the Porphyrian tree or Tree of Porphyry is a classic device for illustrating a "scale of being" (Latin: scala praedicamentalis), attributed to the 3rd-century CE Greek neoplatonist philosopher and logician Porphyry, and revived through ...
Porphyry (geology), an igneous rock with large crystals in a fine-grained matrix, often purple, and prestigious Roman sculpture material; Shoksha porphyry, quartzite of purple color resembling true porphyry mined near the village of Shoksha, Karelia, Russia; Porphyritic, the general igneous texture of a rock with two distinct crystal ...
“PIN1 is present in all organisms whose cells have nuclei, from yeast to humans, and its high degree of conservation during evolution indicates it has an important function.”
While many plants have been used for food, a small number of staple crops including wheat, rice, and maize provide most of the food in the world today. In turn, animals provide much of the meat eaten by the human population, whether farmed or hunted, and until the arrival of mechanised transport, terrestrial mammals provided a large part of the ...
In an exclusive excerpt from ‘Postmortem: What Survives The John Wayne Gacy Murders,’ Courtney Lund O’Neil details her mother’s friendship with Robert Piest, Gacy’s final victim