False words are not only evil in themselves, but they infect the soul with evil.
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Original Citation
Socrates. Quoted in Φαίδων [Phaedo], written by Plato. c. 360 BC.
Current Citation
Socrates. Quoted in "Phaedo." Plato: Five Dialogues: Euthyphro, Apology, Crito, Meno, Phaedo, written by Plato, translated by G. M. A. Grube and John M. Cooper. Hackett Publishing, 2002.