Epictetus. (c.A.D. 50–c.A.D. 138). The Golden Sayings of Epictetus.
The Harvard Classics. 1909–14.
XII
The reason why I lost my lamp was that the thief was superior to me in vigilance. He paid however this price for the lamp, that in exchange for it he consented to become a thief: in exchange for it, to become faithless.