My master Attalus used to say: "Evil herself drinks the largest portion of her own poison." The poison which serpents carry for the destruction of others, and secrete without harm to themselves, is not like this poison; for this sort is ruinous to the possessor.
Quemadmodum Attalus noster dicere solebat, 'malitia ipsa maximam partem veneni sui bibit'. Illud venenum quod serpentes in alienam perniciem proferunt, sine sua continent, non est huic simile: hoc habentibus pessimum est.
Original text (Latin)
Notes from Wikiquote
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