Although it is recognized that the contemporary men of learning are highly qualified in philosophy, arts and crafts, yet were anyone to observe with a discriminating eye he would readily comprehend that most of this knowledge hath been acquired from the sages of the past, for it is they who have laid the foundation of philosophy, reared its structure and reinforced its pillars. Thus doth thy Lord, the Ancient of Days, inform thee. The sages aforetime acquired their knowledge from the Prophets, inasmuch as the latter were the Exponents of divine philosophy and the Revealers of heavenly mysteries. Men quaffed the crystal, living waters of Their utterance, while others satisfied themselves with the dregs. Everyone receiveth a portion according to his measure. Verily He is the Equitable, the Wise.