         Finally there is “ontological determinism,” which relies on a Neoplatonic scheme of emanation which Khayyam considers to be “among the most significant and complex of all questions,” since “the order of the world is in accordance to how the wisdom of God decreed it” (Fi'l- kawn wa'l-taklīf, 145). He continues, “Necessity is a command which is issued from God Most High, so people may attain those perfections that lead them to happiness” (Fi'l- kawn wa'l-taklīf, 143). This Greek concept of happiness, restated by Fārābī as “For every being is made to achieve the ultimate perfection it is susceptible of achieving according to its specific place in the order of being,” (Al-Fārābī 1973, 224 ) implies that at least our ontological status is pre-determined.