Al-Farabi, Alpharabius, Zodiac chart. al-Farabi, Abu Nasr (c.870-950) Al-Farabi was known to the Arabs as the 'Second Master' (after Aristotle), and with good reason. It is unfortunate that his name has been overshadowed by those of later philosophers such as Ibn Sina, for al-Farabi was one of the world's great philosophers and much more original than many of his Islamic successors. A philosopher, logician and musician, he was also a major political scientist. Astrology.