Metaphysical knowledge essentially implies permanent and changeless certitude. He calls these lust for certitude, pride of history, cosmic vanity, and anger of morality. The certitude of deductive logic remains unexplained by this essentially probabilistic view. The standard that must be met is that of moral certitude ("De exorcismis", 16). DNA testing still cannot determine an individual's full ancestry with absolute certitude. Urfi tells Beena with certitude, "hamari shadi hogi to sara zamana deikhey ga". The location of this battle cannot be determined with 100% certitude. I Europe, a period of great "cultural certitude".