Bahá’u’lláh elucidates the relationship between the prophets and the philosophers of classical times.
‘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. Empedocles, who distinguished himself in philosophy, was a contemporary of David, while Pythagoras lived in the days of Solomon, son of David, and acquired Wisdom from the treasury of prophethood. It is he who claimed to have heard the whispering sound of the heavens and to have attained the station of the angels. In truth thy Lord will clearly set forth all things, if He pleaseth. Verily, He is the Wise, the All-Pervading. The essence and the fundamentals of philosophy have emanated from the Prophets’.