1. Philia in Plato2. Aristotle on Friendship: Insight from the Four Causes3. Souls Great and Small: Aristotle on Self-Knowledge, Friendship, and Civic Engagement4. Making Friends: The Stoic Conception of Love and Its Platonic Background5. Erōs and Philia in Epicurean Philosophy6. Cicero’s Stoic Friend as Resolution to the Paradoxes of Platonic Love: De Amicitia alongside the Symposium7. Friendship in Late Antiquity: The Case of Gregory Nazianzen and Basil the Great8. Adiutrix Virtutum?: Augustine on Friendship and Virtue9. Aelred of Rievaulx on Friendship10. Thomas Aquinas: Charity as Friendship11. Aristotle and Kant on Self-Disclosure in Friendship12. The Platonic Roots of Hölderlin’s Concept of Friendship in Hyperion