who, having attained sixty years, held out his pulse to a physician
was a fool.]

and he might have learned it of Socrates, who, advising his disciples to
be solicitous of their health as a chief study, added that it was hard if
a man of sense, having a care to his exercise and diet, did not better
know than any physician what was good or ill for him. And physic itself
professes always to have experience for the test of its operations: so
Plato had reason to say that, to be a right physician, it would be
necessary that he who would become such, should first himself have passed
through all the diseases he pretends to cure, and through all the
accidents and circumstances whereof he is to judge. 'Tis but reason they
should get the pox, if they will know how to cure it; for my part,
I should put myself into such hands; the others but guide us, like him
who paints seas and rocks and ports sitting at table, and there makes the
model of a ship sailing in all security; but put him to the work itself,
he knows not at which end to begin. They make such a description of our
maladies as a town crier does of a lost horse or dog--such a color, such
a height, such an ear--but bring it to him and he knows it not, for all
that. If physic should one day give me some good and visible relief,
then truly I will cry out in good earnest:

"Tandem effcaci do manus scientiae."

["Show me and efficacious science, and I will take it by the hand."
--Horace, xvii. I.]

The arts that promise to keep our bodies and souls in health promise a
great deal; but, withal, there are none that less keep their promise.
And, in our time, those who make profession of these arts amongst us,