Good, Mistere of
Good and evil are closely intertwined, making discernment difficult.
Good and evil, we know, in the field of this world grow up together almost inseparably; and the knowledge of good is so involved and interwoven with the knowledge of evil, and in so many cunning resemblances, hard to be discerned, that those confused seeds which were imposed upon Psyche as an incessant labor to cull out and sort asunder, were not more intermixed. It was from out the rind of one apple tasted, that the knowledge of good and evil, as two twins cleaving together, leaped forth into the world.
— Milton