Answer
Stoicism was inspired by Zeno of Citium's reading of Memorabilia, a work by Xenophon that recorded the teachings of Socrates. Zeno was particularly drawn to Socrates' emphasis on virtue, self-control, and the importance of living in accordance with nature. These ideas became the foundation of Stoicism, a philosophical school that emphasized the pursuit of wisdom and virtue as the means to achieve happiness and inner peace.