Lux in tenebris
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Thank you, Drakkoska! You are a person with a kind soul. There is also such an expression: "The best is the worst enemy of the good."
Евангелие от Иоанна, 1.5: Lux in tenebris lucet, et tenebrae eam non comprehenderunt. Свет во тьме светит, и тьма не объяла его.