http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Lysis / Plato -- Nicomachean ethics (Books VIII and IX). Rhetoric (II.4) / Aristotle -- "On Friendship" (De amicitia) / Cicero -- "On Philosophy and Friendship" and "On Grief for Lost Friends" / Seneca -- "Spiritual Friendship" (De spiritali amicitia, Book I) / Aelred of Rievaulx -- Questions on love and charity (from Summa theologiae) / Thomas Aquinas -- "Of Friendship" / Montaigne -- "Of Friendship" / Francis Bacon -- Lecture on friendship / Immanuel Kant -- "Friendship" / Ralph Waldo Emerson -- "You Shall Love Your Neighbor" (from Works of love) / Søren Kierkegaard -- "Friendship" / Elizabeth Telfer.