Possible Clues:

• Speaker of the quote found in this puzzle's circled letters
• Jason ____, British Touring Car driver
• Nietzsche antagonist
• 'Allegory of the Cave' philosopher
• One-named philosopher
• Socrates's student
• Disciple of Socrates
• Letters at bottom of page about the French philosopher
• China dismisses the last old, old philosopher
• Drama not unknown to philosopher