Chorda chordae lupus

[goliard]

Nature hath implanted so inveterate a hatred atweene the wolfe and the sheep, that being dead, yet, in the secret operation of Nature, appeareth there a sufficient trial of their discording natures, so that the enmity betweene them seemeth not to dye with their bodies: for if there be put upon a harpe, or any such like instrument, strings made of the intralles of a sheep, and amongst them but only one made of the intralles of a wolfe, be the musitian never so cunning in his skil, yet can he not reconcile them to an unity and concord of sounds: so discording alwayes is that string of the wolfe.

- John Ferne, Blazon of Gentrie, 1586