Every soul, therefore, which comes to childhood, and is on the way to full growth, until the fulness of time is at hand, needs a tutor and stewards and guardians, in order that, after all these things, he who formerly differed nothing from a bond-servant, though he is lord of all, [5200] may receive, when freed from a tutor and stewards and guardians, the patrimony corresponding to the very costly pearl, and to that which is perfect, which on its coming does away with that which is in part, when one is able to receive "the excellency of the knowledge of Christ," [5201] having been previously exercised, so to speak, in those forms of knowledge which are surpassed by the knowledge of Christ. But the multitude, not perceiving the beauty of the many pearls of the law, and all the knowledge, "in part," though it be, of the prophets, suppose that they can, without a clear exposition and apprehension of these, find in whole [5202] the one precious pearl, and behold "the excellency of the knowledge of Christ," in comparison with which all things that came before such and so great knowledge, although they were not refuse in their own nature, appear to be refuse. This refuse is perhaps the "dung" thrown down beside the fig tree by the keeper of the vineyard, which is the cause of its bearing fruit. [5203]