He was a pioneer of the reductio ad absurdum argument. Aristotle credited him with co-inventing the dialectic method of philosophy.

He is best remembered for his" target="_blank" class="inline-link">https://plato.stanford.edu... paradoxes. His best-known paradox suggests that movement is impossible. He asks us to imagine a runner on a track. He notes that before the runner can run the whole length, they must first run the first half, then a quarter, then an eighth, and so on.

Several potential solutions have been put forth to his paradoxes and debate continues to this day. The potential answers to his paradoxes have influenced discussions about time, space, and how we perceive reality.