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Those [Christians] had left to love on earth were then: brothers and sisters in hatred, whom they called then: brothers and sisters in love.

"An Essay on the Aristocratic Radicalism of Friedrich Nietzsche". Essay by Georg Brandes (1889), as translated in "Friedrich Nietzsche" by A.G. Chater (p. 32), 1914.
Those [Christians] had left to love on earth were then: brothers and sisters in hatred, whom they called then: brothers and sisters in love.