In Friendship, Italian philosopher Claudia Baracchi explores the philosophical underpinnings of friendship. Tackling the issue of friendship in the era of Facebook and online social networks requires courage and even a certain impertinence. The friendship relationship involves trust, fidelity, and availability for profound sharing. Sociologists assure us this attitude was never more improbable than in our time of dramatic anthropological reconfiguration. Research on friendship cannot therefore ignore ancient thought: with unparalleled depth, Friendship examines the broader implications of...