caption death_date death_place influenced era birth_place school_tradition influences image_size main_interests notable_ideas name birth_date image article_title region
xenocrates 314/3 bc athens polemo , crantor , and many others ancient philosophy chalcedon platonism plato , speusippus , pythagoreanism 200px logic , ethics , physics , metaphysics , epistemology , mathematics developed the philosophy of plato xenocrates 396/5 bc xenocrates.jpg xenocrates
 western philosophy
xenocrates

xenocrates -lrb- ; ; c. 396/5 -- 314/3 bc -rrb- of chalcedon was a greek philosopher , mathematician , and leader -lrb- scholarch -rrb- of the platonic academy from 339/8 to 314/3 bc .
his teachings followed those of plato , which he attempted to define more closely , often with mathematical elements .
he distinguished three forms of being , the sensible , the intelligible , and a third compounded of the two , to which correspond respectively , sense , intellect and opinion .
unity and duality he considered to be gods which rule the universe , and the soul is a self-moving number .
god pervades all things , and there are daemonical powers , intermediate between the divine and the mortal , which consist in conditions of the soul .
he held that mathematical objects and the platonic ideas are identical , unlike plato who distinguished them .
in ethics , he taught that virtue produces happiness , but that external goods can minister to it and enable it to effect its purpose .
