—Jeremy Taylor

Friendship hath the skill and observation of the best physician, the diligence and vigilance of the best nurse, and the tenderness and patience of the best mother.

—The Earl of Clarendon

Friendship is the only thing in the world concerning the usefulness of which all the world is agreed.

—Cicero

Friendship is a disinterested commerce between equals.

—Goldsmith

O friendship, flavor of flowers! O lively sprite of life!
O sacred bond of blissful peace, the stalworth staunch of strife!
—Nicholas Grimald

The man who has no enemies deserves to have no friends.

—R. C. MacDonald