Who said "I am bound to the world of men and duty."?

This quote is attributed to Jon Snow.

I am bound to the world of men and duty. - Jon Snow

"I am bound to the world of men and duty."

Jon Snow

Character in A Clash of Kings

Buy "A Clash of Kings" on Amazon

"A man of the Night's Watch does not father children."

"There is no shame in fear, only in surrendering to it."

"The night gathers, and now my watch begins"

"The dead do not care for our wars"