Related Clues:

• Way to bitch regularly — not if this
• Adherent of a philosophy of wisdom, justice, courage and moderation
• One strives to be unflappable
• Uncomplaining, say
• One remaining impassive despite adversity
• Mostly remain around old Greek philosopher
• Philosopher — one in short supply
• Not showing emotion
• Emotionless, ostensibly
• Marcus Aurelius, for one
• Unaffected by feelings, seemingly
• Dreadful cost I accepted uncomplaining
• Head of innovation in store nearly resigned
• A lot of criticism about old patient
• Showing no fear, maybe