That learn’d physicians pine with hunger,[80]

The while a spruce young patent-monger

Contrives to wheedle simple ninnies,

And tractorize away our guineas.

That many thousand cures attested

Show death’s cold hand full oft arrested;

But those who from his prey would part him,

Should manage things secundum artem.

That none should ancient customs vary,

Nor leges physicæ mutare;