However , following a stroke , he passed the chair to Xenocrates .
After Plato 's death , c. 348 BC , Speusippus inherited the Academy , near age 60 , and remained its head for the next eight years .
Following a stroke , Speusippus passed the chair to Xenocrates .
After Plato 's death , c. 348 BC , Speusippus inherited the Academy , near age 60 , and remained its head for the next eight years .