“Each of us must turn inward and destroy in himself all that he thinks he ought to destroy in others.”
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Etty Hillesum 28
Jewish diarist 1914–1943Related quotes

“When the white man turns tyrant, it is his own freedom that he destroys.”
Source: Shooting an Elephant

https://www.goodreads.com/quotes/9672842-no-one-should-need-to-be-big-enough-to-destroy

As quoted in The Works of the Emperor Julian (1923) by Wilmer Cave France Wright, p. 91
General sources

“Of what use to destroy the children of evil? It is evil itself we must destroy at the roots.”
Martin Pippin in the Apple Orchard (1922)