Quizzes - Plato

* Which work of Plato's was most influenced by the mystical-scientific ideas of the Pythagoreans?
* Above the entrance to his Academy was the following quote, 'Let none who has not learned ___________ enter here'. What goes in the blank?
* Which student of Plato developed the system of concentric spheres that became the epicycles of the Ptolemaic astronomical system?
* Aside from developing the system of concentric spheres upon which the epicyclic Ptolemaic arrangement of the solar system was based, what other remarkable achievement was made by this great follower of Plato?
* A pupil of Plato's great student, who developed the system of concentric spheres borrowed by Ptolemy, was this man who advanced the system of epicycles, adding an additional seven, laying the final groundwork for the system adopted by Aristotle and Ptolemy. Who was he?