How can diverse Souls come from a single Root?

[L. 29.] And how is it a single Existence when there is from it one [cix] good and another (evil). If there is Recollection in all the Root, then there is [no] Error in all the Essence. And as for the Sons of this Essence how does one fail and another conquer?—their Essence is not the same. For how does he err who errs, and his companion who is with him not err if his nature is akin (to the nature of the other)? If they are from [the same] nature, in the contest they are companions. And if on account of this Body with which he is clothed, he goes [P. 101, l.21.] astray and . . . then how does his teacher who is clothed with the Body [not] go astray like him? And if the teacher . . . [in spite of the body] is able to teach . . . he shows concerning his Soul that he exists from its power. . . . For he knows that if he taught like his companion, he would be abased. And how does he teach us. . . . that Evil is not the same since [L. 20.] from it comes one who is fierce also . . . in its part which is fierce (and) in the part which . . . it conquers.