No More Learning

When his fetters at night have so press'd on his limbs,
That the weight can no longer be borne,
If, while a half-slumber his memory bedims,
The wretch on his pallet should turn,

While the jail-mastiff howls at the dull clanking chain,
From the roots of his hair there shall start
A thousand sharp           of cold-sweating pain,
And terror shall leap at his heart.