Britannica AI Icon

Quick Summary

Parmenides, an ancient Greek philosopher, presented his core teachings in a three-part poem titled On Nature. The "Way of Truth" is the central part of this work, where Parmenides argues that reality is a single, eternal, and unchanging entity he called "Being." He asserted that the perceived world of change and multiplicity is merely an illusion, and that "all is one." This philosophical stance, known as Eleaticism, rejected the idea of non-Being, stating that only what exists can be thought or expressed. Parmenides is considered a founder of metaphysics for his logical approach to understanding reality.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
2 Britannica Sources
  1. Parmenides
  2. Eleaticism

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.