Full Idea
Everything gives way, and nothing stands fast.
Gist of Idea
Everything gives way, and nothing stands fast
Source
Heraclitus (fragments/reports [c.500 BCE]), quoted by Plato - Cratylus 402a
Book Reference
Plato: 'Complete Works', ed/tr. Cooper,John M. [Hackett 1997], p.120
A Reaction
This is as good a summary of the Heraclitus view of things as any, and Plato appears to present it as a verbatim quotation.