‘Tis a Madness to stand biting and snapping at any Thing to no manner of Purpose, more than the gratifying of an impotent Rage, in the fancy of hurting another, when in Truth, we only wound our selves.
Source: L'Estrange 45. L'Estrange here has combined the story of the snake and the file with the story of the weasel (or cat) and the file, who licks until its tongue bleeds.
Click here for a SLIDESHOW of all the Brescia images. I really like this evil-looking snake. There is also a similarly evil-looking snake in the Brescia illustration of the story of the farmer who warmed a snake.