ase proceed? how could we excuse the error they so oft fall into,
of taking fox for marten? In the diseases I have had, though there were
ever so little difficulty in the case, I never found three of one
opinion: which I instance, because I love to introduce examples wherein I
am myself concerned.

A gentleman at Paris was lately cut for the stone by order of the
physicians, in whose bladder, being accordingly so cut, there was found
no more stone than in the palm of his hand; and in the same place a
bishop, who was my particular friend, having been earnestly pressed by
the majority of the physicians whom he consulted, to suffer himself to be
cut, to which also, upon their word, I used my interest to persuade him,
when he was dead and opened, it appeared that he had no malady but in the
kidneys. They are least excusable for any error in this disease, by
reason that it is in some sort palpable; and 'tis thence that I conclude
surgery to be much more certain, by reason that it sees and feels what it
does, and so goes less upon conjecture; whereas the physicians have no
'speculum matricis', by which to examine our brains, lungs, and liver.

Even the very promises of physic are incredible in themselves; for,
having to provide against divers and contrary accidents that often
afflict us at one and the same time, and that have almost a necessary
relation, as the heat of the liver and the coldness of the stomach, they
will needs persuade us, that of their ingredients one will heat the
stomach and the other will cool the liver: one has its commission to go
directly to the kidneys, nay, even to the bladder, without scattering its
operations by the way, and is to retain its power and virtue through all
those turns and meanders, even to the place to the service of which it is
designed, by its own occult property this will dry-the brain; that will
moisten the lungs. Of all this bundle of things having mixed up a
potion, is it not a kind of madness to imagine or to hope that these
differing virtues should separate themselves from one another in this
mixture and confusion, to perform so many various errands? I should very
much fear that they would either lose or change their tickets, and
disturb one another's quarters. And who can imagine but that, in this
liquid confusion, these faculties must corrupt, confound, and spoil one
another? And is not the danger still more when the making up of this
medicine is entrusted to the skill