Related Clues:

• Plato’s teacher
• Emerge carrying dram left for philosopher
• “Allegory of the Cave” originator
• Philosopher taught by Socrates
• Artist Leo turns out to be an old philosopher
• Artist Leo turns to the old philosopher
• Corrupt trial set to imprison old philosopher
• Who said 'I know nothing except the fact of my ignorance'
• Notable Greek nobleman talked regularly
• Principals prohibit learning about teachings of this idealist
• Greek philosopher’s very constant values
• Treat soil (anag) — Greek philosopher
• Athenian Club's reduced joining fees
• Philosopher's request for help wrapping box
• Philosopher's occupational therapy: mountain climbing