This book is basedonthe PhDthesis Iwroteatthe University of St Andrews between 2013 and 2016.These years werea mong the best of my life, and not only because of my research topic. Never before had Ie xperienceds uch as ense of community and intellectual belongingasIdid at the St Andrews Philosophy Department. Ia mg rateful to my supervisor,P rofessor Jens Timmermann, for all his advice. He provided me with the torch Ih eld onto in seeking my wayt hrough the beautiful labyrinth of lovei nK ant.B ecause of Professor Timmermann, I was never completelyinthe dark. Iamthankful for our discussions, for his careful criticism, and for his kindness and benevolence. Ialso wish to thankm ysecond supervisors, Professors Marcia Baron and Sarah Broadie. Professor Baron's earlyf eedback significantlyi mproved my writing,a nd it makes me happy to think of all I've learned from Professor Broadie about loveinancient philosophy, and tacitlya bout wisdom in general. Iwant to thankm yK antian peers in St Andrews for all their practical help, and for our endless informal exchanges, which are so important when one is formulating and trying out one'sideas: Stefano Lo Re, LeonardRandall, and Martin Sticker.Icherish our friendships. Ia lso thank all my other fellow graduates tudents, as well as St Andrews Philosophys taff, for together creatingasmall, vibrant havenw ith au niquea tmosphere so conducive to profound thought. I will not be wistful, but Iw ill always carry St Andrews Philosophyi nm yh eart. Ispent the spring of 2016 at the Humboldt University of Berlin, finalising my thesis, and Iamgrateful to my host,Professor Thomas Schmidt,for his hospitality and helpful comments on my research. Ihavealsohad the opportunity to discuss topics related to my work at various seminars, workshops and international conferences,and at the annual review sessions and the final oral examination at St Andrews.Ithank the following people, who have clearly had an influenceon this study:M artin Brecher,Alix Cohen, Rowan Cruft,L iF an, John Haldane, Rae Langton (external examiner), Kate Moran, BarbaraS attler (internal examiner), Dieter Schönecker, Leslie Stevenson, Michael Walschots, and Günter Zöller. Ia mg rateful to the St Andrews &S tirlingG raduateP rogramme in Philosophyfor its financial support.Ialsowish to thank Johanna Wange, Project Editor at De Gruyter,C arolyn Benson (languagep olishing), and Florian Ruppenstein (Production Editor)for kindlyhelping to preparethe manuscript for publication. Finally, It hank my family: my lovelyw ife Noraa nd our amazing twin sons Aarni and Aale. It is difficult for me to enumerate my gratitude to Nora. She is the spring of most of what is good in my life. Iamgrateful for her tirelesssupport