Marcus Aurelius, from Exhortations to Himself

Bk. III. 4. Do not waste the time you have left in life thinking about what others are thinking when you could be thinking about something useful. You are losing the chance to think about something besides “what is so-and-so doing? and why? What is so-and-so saying? What is so-and-so thinking? What is so-and-so plotting?” … More Marcus Aurelius, from Exhortations to Himself