Solutions ... tzu, ancient chinese philosopher has 5 entries with similar clues

• 5-letter words
• platoAncient Greek philosopher
• artofSun Tzu's "The ... War": 2 wds.
• 6-letter words
• taoistFollower of Lao-tzu
• taoismLao-tzu's teachings
• 9-letter words
• sophoclesAncient Greek philosopher