“We often learn the hard way that our world is ruled by external factors. We don't always get what is rightfully ours, even if we've earned it.”

American marketer and author

Ryan Clark Holiday is an American marketer and author. He became known for presenting Stoicism as a practical philosophy for modern life, especially through the teachings associated with the Roman emperor Marcus Aurelius. His work centers on making Stoicism accessible to contemporary readers and on marketing ideas about disciplined, reflective living. He is known for promoting that tradition in a way that connects ancient philosophy with present-day concerns.