Source: Chinese Cinderella and the Secret Dragon Society
“Revenge may be a wound that transcends all human consciousness. Those who are trapped in it will never be the same person again.”
Related quotes

The Essays Or Counsels, Civil And Moral, Of Francis Ld. Verulam Viscount St. Albans (1857), Revenge

Miloš Urošević, as quoted in May '92 (2012) p.19
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From Amritanandamayi's Speech Against Human Trafficking and Slavery at the Vatican (2014)

Source: Stillness Speaks (2003), Chapter 2 Beyond the Thinking Mind

The Tragic Sense of Life (1913), VI : In the Depths of the Abyss

Pandosto (1588); p. 9 http://books.google.com/books?id=5FIPAAAAQAAJ&q="Treason+is+loved+of+many+but+the+traitor+hated+of+all"&pg=PA9#v=onepage.
Compare: "Cæsar said he loved the treason, but hated the traitor", Plutarch, Life of Romulus.
Compare: "This principle is old, but true as fate,—
Kings may love treason, but the traitor hate." Thomas Dekker, The Honest Whore (1604).
“A new wound makes all the old ones ache again.”
The Complete Neurotic's Notebook (1981), Unclassified

The Tragic Sense of Life (1913), VII : Love, Suffering, Pity