So also the philosopher, resembling the wild olive, in having much that is undigested, on account of his devotion to the search, his propensity to follow, and his eagerness to seize the fatness of the truth; if he get besides the divine power, through faith, by being transplanted into the good and mild knowledge, like the wild olive, engrafted in the truly fair and merciful Word, he both assimilates the nutriment that is supplied, and becomes a fair and good olive tree. For engrafting makes worthless shoots noble, and compels the barren to be fruitful by the art of culture and by gnostic skill.