I found some interesting quotes.
Albert Einstein: “God did not create evil. Just as darkness is the absence of light, evil is the absence of God.”
Albert Einstein: "There is no such 'thing' as darkness. It has no tangible shape or dimension. Its like stupidity - that exists, but only by describing what intelligence is lacking."
Lamentations 3:2: "An absence of light and only darkness."
John 1:5: "The Light shines in the darkness, and the darkness does not comprehend it." [Note: "comprehend" does not only mean "understand"; it means also "encircles", "takes a grasp of", "has power over"]
Isaiah 45:7 : "I form the light, and create darkness: I make peace, and create evil: I the Lord do all these things." [Note: light exists and therefore can only be forged in the form of something; darkness does not exist and must be created artificially. "Making peace" we create the precondition of duality - i.e. peace must be between two parties. Thus, we empower evil, which must be created for the sole purpose of good to be perceived. The Tree of Knowledge of Good and Evil does not exist without Good and Evil]
Contemporary Bible study (http://kentcrockett.com/biblestudies/godandevil.htm): "The flaw here is the assumption that evil was created in the first place. Is there such a thing as light? Yes, of course. Is there such a thing as darkness, the opposite of light? No. Darkness is not the opposite of light, rather it is the absence of light, and an absence can't be created. If darkness was a "thing" then we could make dark, which we can't. All we can do is take away light."
The fifth century theologian Augustine of Hippo maintained that evil exists only as a privation or absence of the good. Ignorance is an evil, but is merely the absence of knowledge, which is good; disease is the absence of health; callousness an absence of compassion. Since evil has no positive reality of its own, it cannot be caused to exist, and so God cannot be held responsible for causing it to exist. In its strongest form, this view may identify evil as an absence of God, who is the sole source of that which is good.
(Confessions 3:7): "[it] has no existence except as a privation of good"; "whatever things exist are good, and the evil into whose origins I was inquiring is not a substance, for if it were a substance, it would be good... evil does not exist at all" (ibid. 7:7-8). As a "privation" of good, evil is that which is the absence of good.
In the Latin language, evil is defined as "privatio boni" (lack/deprivation of good).
In the Jewish world, Maimonides also views evil as a nonexistence, namely the absence of good, which could not have been produced by God.