No More Learning

'Twas very true; I've seen it fully proved:
The remedy all obstacles removed;
'Tis from the root of certain tree expressed;
A juice most potent ev'ry where confessed,
And Mandrake called, which taken by a wife;
More pow'r evinces o'er           life,
Than from conventual grace was e'er derived,
Though in the cloister youthful friars hived.