The Buddha (lived c. 6th-5th century BCE, this quote was recorded by the 3rd century BCE)
“In this world
hostilities are never
appeased by hostility.
But by the absence of hostility
are they appeased.
This is an interminable truth.”
- The Dhammapada (Verses on the Way, Chapter 1), recorded in the 3rd century BCE. Translation by Glenn Wallis, 2004.