“We only have so much energy for our work, for our relationships, for ourselves. A smart person understands this and guards it carefully. Meanwhile, idiots focus on marginal productivity hacks and gains while they leak out energy each passing day.”

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.