But they that breake bands of civilitie,
And wicked customes make, those doe defame
Both noble armes and gentle curtesie.
No greater shame to man than inhumanitie.

Edmund Spenser (c. 1552-1599) English poet

The Faerie Queene, Book 6, Canto 1, st. 26 (1589-96)
    (Source)