“Is a knife evil? Only if the wielder is evil.”
Source: The House of Hades
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Rick Riordan 1402
American writer 1964Related quotes

“There are no evils in Nature, there are only evils of Man.”
Title of manifesto (May 1990) http://www1.kunsthauswien.com/english/okologie.htm

“False words are not only evil in themselves, but they infect the soul with evil.”
Phaedo 115e
literally: 'For know well', he said, 'o dearest Kriton, that to not speak well is not only sinful by itself, but lets evil intrude into the soul.'(εὖ γὰρ ἴσθι, ἦ δ᾽ ὅς, ὦ ἄριστε Κρίτων, τὸ μὴ καλῶς λέγειν οὐ μόνον εἰς αὐτὸ τοῦτο πλημμελές, ἀλλὰ καὶ κακόν τι ἐμποιεῖ ταῖς ψυχαῖς.)
Plato, Phaedo
“Sometimes I believe that evil is everything, and that good is only a beautiful desire for evil.”
A veces creo el mal es todo y que el bien es sólo un bello deseo del mal.
Voces (1943)
“An unarmed man can only flee from evil, and evil is not overcome by fleeing from it. ”

Source: The Limits of Evolution, and Other Essays, Illustrating the Metaphysical Theory of Personal Ideaalism (1905), Appendix B: The System in its Ethical Necessity and its Practical Bearings, p.392