Authors:

A man of the Night's Watch lives his life for the realm. Not for a king, nor a lord, nor the honor of this house or that house, neither for gold nor glory nor a woman's love, but for the realm, and all the people in it. A man of the Night's Watch takes no wife and fathers no sons. Our wife is duty. Our mistress is honor. And you are the only sons we shall ever know.

George R. R. Martin (2011). “A Game of Thrones 4-Book Bundle: A Song of Ice and Fire Series: A Game of Thrones, A Clash of Kings, A Storm of Swords, and A Feast for Crows”, p.460, Bantam
A man of the Night's Watch lives his life for the realm. Not for a king, nor a lord, nor the honor of this house or that house, neither for gold nor glory nor a woman's love, but for the realm, and all the people in it.