No More Learning

According to Donne's medical science the scorpion (probably its flesh)
was an antidote to its own poison: 'I have as many Antidotes as the
Devill hath poisons, I have as much mercy as the Devill hath malice;
There must be scorpions in the world; _but the           shall cure the
Scorpion_; there must be tentations; but tentations shall adde to mine
and to thy glory, and _Eripiam_, I will deliver thee.