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Heraclitus

Heraclitus. Beginning is together with end. Immortals are mortals, mortals immortal; living their death, dying their life. A road: uphill, downhill, one and the same.

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Heraclitus

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  1. Heraclitus

  2. Beginning is together with end. Immortals are mortals, mortals immortal; living their death, dying their life. A road: uphill, downhill, one and the same.

  3. Heraclitus, I believe, says that all things pass and nothing stays, and comparing existing things to the flow of a river, he says you could not step twice into the same river. Plato, Cratylus 402a

  4. The Flux Thesis: Ordinary objects do not exist for more than a moment.

  5. For it is not possible to step twice into the same river, according to Heraclitus, nor to touch mortal substance twice in any condition: by the swiftness and speed of its change, it scatters and collects itself again—or rather, it is not again and later but simultaneously that it comes together and departs, approaches and retires. [B91] Plutarch, On the E at Delphi

  6. The Flux Argument • TR is YR. • TR is TW • YR is YW • [So] TR is YW • [So] YW is TR • [So] YW is TW. • YW isn’t TW. • [So] YR isn’t TR. • If (8), then the Flux Thesis is true. • The Flux Thesis is true.

  7. [B91] potamôi … tôiautôi …It is not possible to step twice into the same river according to Heraclitus, or to come into contact twice with a mortal being in the same state. (Plutarch) [B12] potamoisitoisinautoisinembainousinheterakaiheterahudataepirrei. On those stepping into rivers staying the same other and other waters flow. (Cleanthes from Arius Didymus from Eusebius) [B49] potamoistoisautois … Into the same rivers we step and do not step, we are and are not. (Heraclitus Homericus)

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